The editorial team greatly appreciates the reviewers who have dedicated their considerable time and expertise to the journal’s rigorous editorial process over the past 12 months, regardless of whether the papers are finally published or not. In 2019, a total of 103 papers were published in the journal, with a median time to first decision of 27 days and a median time from submission to publication of 52 days. The editors would like to express their sincere gratitude to the following reviewers for their generous contribution in 2019:
| Abe, Naoko | Martinez-Martin, Ester |
| Adamatzky, Andrew | Martín-Rico, Francisco |
| Aghasian, Erfan | Martins Da Silva, Maira |
| Ahmed, Sevil | Mateo, Carlos M. |
| Alsalloum, Ataa | Mazomenos, Evangelos |
| Alves De Oliveira, Thiago Eustaquio | McGrath, James |
| Auat-Cheein, Fernando | Mejia Rincon, Leonardo |
| Bai, Long | Meng, Lingju |
| Barrett, Ronald M. | Mercorelli, Paolo |
| Bellotto, Nicola | Mizzi, Luke |
| Berg, Devin R. | Monaco, Vito |
| Bianchi, Matteo | Mondada, Francesco |
| Bimbo, Joao | Moore, Philip |
| Boboc, Răzvan Gabriel | Moreno-Valenzuela, Javier |
| Bocicor, Maria Iuliana | Mostafa, Mostafa |
| Bonaci, Tamara | Motzki, Paul |
| Boscariol, Paolo | Mura, Andrea |
| Boschetti, Giovanni | Muscato, Giovanni |
| Bouffanais, Roland | Mutka, Alan |
| Bozcuoğlu, Asil Kaan | Naceri, Abdeldjallil |
| Brito-Loeza, Carlos | Nansai, Shunsuke |
| Calderon, Juan | Napolitano, Rebecca |
| Calli, Berk | Nascimento, Tiago |
| Cao, Hoang-Long | Natale, Ciro |
| Carbone, Giuseppe | Neveln, Izaak |
| Castillo Garcia, Fernando Jose | Nguyen, Thanh Thi |
| Castillo, Oscar | Nikolaidis, Stefanos |
| Chablat, Damien | Novak, Domen |
| Chamoso Santos, Pablo | Oswald-Tranta, Beate |
| Chang, Bo | Otani, Takuya |
| Chang, Chung-Liang | Palacín, Jordi |
| Chen, Dechao | Palinko, Oskar |
| Cheng, Shing Shin | Pandya, Abhilash |
| Cheng, Yongqiang | Pang, Da-Chen |
| Cho, Dang-il | Park, Jeonghong |
| Choi, Jaesoon | Parmiggiani, Alberto |
| Chou, Chien-Hsing | Parra, Vicente |
| Clark, Jason | Patel, Sarosh |
| Cocuzza, Silvio | Patil, Madhav |
| Coevoet, Eulalie | Pellenz, Johannes |
| Conti, Daniela | Perez-Ramirez, Carlos |
| Controzzi, Marco | Perikos, Isidoros |
| Cooper, Matthew A. | Pertile, Marco |
| Corrales Ramon, Juan Antonio | Peterson, John |
| Corves, Burkhard | Petit, Antoine |
| Costa Ramos, Daniel | Pires, Ivan |
| Cristófol-Rodríguez, Francisco-Javier | Pirozzi, Salvatore |
| Cronkite, Ruth C. | Pollicino, Antonino |
| Da Costa, Cesar | Popescu, Diana |
| D’Alonzo, Marco | Pranggono, Bernardi |
| De Oliveira, Mario Anderson | Primatesta, Stefano |
| De Rossi, Danilo | Pytka, Jarosław |
| Deshpande, Nikhil | Rabindran, Dinesh |
| Deussen, Oliver | Rahman, M Arifur |
| Di Natali, Christian | Rajasekaran, Vijaykumar |
| Di Nuovo, Alessandro | Ramon Soria, Pablo |
| Dias, Andre | Rangel-Magdaleno, José De Jesús |
| Doitsidis, Lefteris | Rasolofondraibe, Lanto |
| Dos Santos, Matheus | Ravankar, Abhijeet |
| Droge, Greg | Realmuto, Jonathan |
| Efthimiou, Eleni | Reinoso, Oscar |
| Eteokleous, Nikleia | Rodríguez-Licea, Martín-A. |
| Fakhari, Amin | Roldán Gómez, Juan Jesús |
| Fan, Jizhou | Romero, Margarida |
| Fekrmandi, Hadi | Roth, Zvi |
| Feliu, Vicente | Roveda, Loris |
| Fernandes, Marcelo | Rybus, Tomasz |
| Ferraresi, Carlo | Rzucidlo, Pawel |
| Foit, Krzysztof | Saal, Hannes |
| Fomin, Alexey | Sabatini, Marco |
| Forner-Cordero, Arturo | Šafarič, Riko |
| Fortuna, Luigi | Saltaren, Roque |
| Fourlas, George K. | Salzman, Oren |
| Fu, Hailing | Sanchez-Lopez, Jose Luis |
| Fujita, Katsuhide | Sattar, Junaed |
| Gallardo-Alvarado, Jaime | Sauer, Piotr |
| Gao, Fei | Savino, Heitor |
| Gao, Feng | Sawada, Tadamasa |
| Garcia Gonçalves, Luiz Marcos | Scalera, Lorenzo |
| Gasparetto, Alessandro | Scaradozzi, David |
| Gawel, Abel | Screpanti, Laura |
| Giberti, Hermes | Seet, Gerald Gim Lee |
| Giffney, Tim | Seriani, Stefano |
| Giorgio-Serchi, Francesco | Severson, Rachel |
| Girbés, Vicent | Shih, Ching-long |
| Gonzalez De Los Reyes, Rafael Corsino | Siguerdidjane, Houria |
| Gonzalvez, Pablo Rodriguez | Simoni, Roberto |
| Goodin, Christopher T. | Singh, Aditi |
| Grazioso, Stanislao | Song, Rong |
| Grosch, Patrick | Song, Yu |
| Groves, Keir | Sparavigna, Amelia Carolina |
| Gruppioni, Emanuele | Stilwell, Daniel |
| Guan, Yisheng | Straub, Jeremy |
| Guo, Shuxiang | Strisciuglio, Nicola |
| Hariri, Hassan Hussein | Stuart, Hannah |
| Haschke, Robert | Su, Junwei |
| He, Qingsong | Šuligoj, Filip |
| Hernandez, Eusebio Eduardo | Sun, Yanchao |
| Herrera-May, Agustin L. | Sutin, Alexander |
| Hintze, Wolfgang | Takeda, Yukio |
| Hockman, Benjamin | Tanev, Ivan |
| Hohmann, Sören | Tibaduiza Burgos, Diego Alexander |
| Holm, Magnus | Tiseo, Carlo |
| Holthaus, Patrick | Tkach, Itshak |
| Horla, Dariusz | Torres-Méndez, Luz Abril |
| Huang, Sunan | Trematerra, Amelia |
| Hussien, Haitham | Trovato, Gabriele |
| Indri, Marina | Tsiakas, Konstantinos |
| Ioannis, Liritzis | Tuyishimire, Emmanuel |
| Ivanescu, Mircea | Tyrrell, Andy |
| James, Jasper | Umbrico, Alessandro |
| Jerčić, Petar | Vaida, Calin |
| Jovanović, Vukica | Valiente, David |
| Jung, Sunghun | Valova, Irena |
| Kaboli, Mohsen | Valverde, Alfredo |
| Kamel, Mohamed A. | Vander Hook, Joshua |
| Kapadia, Apoorva | Vieira Filho, Jozue |
| Karaszewski, Maciej | Visentin, Francesco |
| Kawashima, Kenji | Vladareanu, Luige |
| Kazanzides, Peter | Vonásek, Vojtěch |
| Kelemen, Michal | Wang, Jiangxin |
| Kermani, Mehrdad R. | Wang, Miaomiao |
| Kim, Jong-Hoon | Wang, Yue |
| Kosa, Gabor | Watson, Simon |
| Kostavelis, Ioannis | Wehrle, Erich |
| Kouziokas, Georgios N. | Wehrmeister, Marco |
| Kožuh, Ines | Wilke, Daniel |
| Krajnik, Tomas | Woo, Jinseok |
| Kumon, Makoto | Wood, Stephen L. |
| Kurabayashi, Daisuke | Wu, Huapeng |
| Labbé, Mathieu | Xiang, Chaoqun |
| Lara Molina, Fabian Andres | Xiang, Xianbo |
| Laribi, Med Amine | Xiao, Yong |
| Laski, Pawel Andrzej | Xu, Hongli |
| Lee, Hyun-Taek | Xu, Wenjun |
| Lee, Min | Yamaguchi, Tomoyuki |
| Lennox, Barry | Yang, Guanci |
| Li, Caihong | Yang, Yang |
| Li, Chi | Yao, Xifan |
| Li, Miao | Yazdani, Mojtaba |
| Liarokapis, Minas | Yi, Daqing |
| Liu, Guangjun | Yu, Junzhi |
| Liu, Guoliang | Yu, Kaiyan |
| Liu, Huaping | Yue, Tao |
| Liu, Tingyi | Zahadat, Payam |
| López, Antonio M. | Zaplana, Isiah |
| Loria, Antonio | Zhang, Haichong |
| Lovasz, Erwin-Christian | Zhang, Heye |
| Lozenguez, Guillaume | Zhang, Hong |
| Luo, Cai | Zhang, Hongying |
| Ma, Ji | Zhang, Jian |
| Ma, Raymond | Zhang, Wenzeng |
| Magnusson, Martin | Zhang, Xiaoyong |
| Mahajan, Harshal | Zhang, Zhou |
| Makris, Sotiris | Zhou, Dalin |
| Malvezzi, Monica | Zi, Bin |
| Manfredi, Luigi | Zubizarreta, Asier |
| Mangina, Eleni | Zubrycki, Igor |
| Martinez-Carranza, José |
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