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 76 papers were published in the journal, with a median time to first decision of 21 days and a median time from submission to publication of 50 days. The editors would like to express their sincere gratitude to the following reviewers for their generous contribution in 2019:
| Abdullah, Nur Azam | Linß, Sebastian |
| Abu-Mahfouz, Issam | Lisovenko, Dmitry |
| Adamus, Janina | Liu, Shengheng |
| Aliheidari, Nahal | Liu, Wei |
| Bai, Xianxu | López-Huerta, Francisco |
| Balandin, Dmitry V. | Makowski, Michał |
| Barbon Jr., Sylvio | Małecki, Krzysztof |
| Bareille, Olivier A. | Markopoulos, Angelos |
| Barriot, Jean-Pierre | Martis, Claudia |
| Bechtsis, Dimitrios | Maurotto, Agostino |
| Belhocine, Ali | Mayr, Josef |
| Berbyuk, Viktor | Megahed, Mustafa |
| Berzi, Lorenzo | Miklosevic, Kresimir |
| Bhaskaran, Gopalakrishnan | Mikolajczyk, Tadeusz |
| Bianchini, Alessandro | Milic, Vladimir |
| Bica, Ioan | Monkova, Katarina |
| Bin, Lin | Morańda, Hubert |
| Botta, Fabio | Mureddu, Mario |
| Brasil Cavalcante, André Luís | Nassehi, Aydin |
| Cacciola, Stefano | Nee, Andrew |
| Cammarata, Alessandro | Netto, Roberto S. |
| Campatelli, Gianni | Nikolakopoulos, Pantelis G. |
| Canders, Wolf-Rüdiger | Nouri, Nima |
| Cao, Hongrui | Nuchkrua, Thanana |
| Cao, Wen-Ping | Orekhov, Andrew |
| Cappello, Leonardo | Ouakad, Hassen |
| Cardoso, José Roberto | Padmanaban, Sanjeevikumar |
| Castelli-Dezza, Francesco | Paleu, Viorel |
| Chasalevris, Athanasios | Pan, Yunpeng |
| Chávez, Esteban | Pandkar, Anup |
| Chen, Kuen-Suan | Papanikolaou, Nick |
| Chen, Tsung-Chia | Pappalardo, Carmine Maria |
| Chen, Wujun | Paredes, Manuel |
| Choi, Seung-bok | Park, You-Jin |
| Christophe, Sauvey | Parra, Vicente |
| Chung, Tein-Yaw David | Parrondo-Gayo, Jorge Luis |
| Cojocaru, Vasile | Perduková, Daniela |
| Cordeiro, Rafael | Pervaiz, Salman |
| Corgnale, Claudio | Petrescu, Florian Ion Tiberiu |
| Cruz, Pedro | Piltan, Farzin |
| Cui, Hao | Portillo-Vélez, Rogelio De J. |
| De Falco, Domenico | Prakht, Vladimir |
| Dehghanghadikolaei, Amir | Precup, Radu-Emil |
| Ding, Shihong | Rabinovici, Raul |
| Ding, Songlin | Radkowski, Rafael |
| Ding, Wenfeng | Radulescu, Mircea |
| Dmitrievskii, Vladimir | Rafael, Silviano |
| Dobre, Alexandru | Rao, Dantam |
| Dobreva, Antoaneta | Raush, Gustavo |
| Dragoi, Elena Niculina | Ravasio, Chiara |
| Du, Yi | Reimer, Uwe |
| Duarte Marafona, José | Ren, Yi |
| Duguleană, Mihai | Richiedei, Dario |
| Dworak, Paweł | Rizzo, Rocco |
| Eason, Paul D. | Roger, Daniel |
| Esteban, M. Dolores | Rojas Sola, José |
| Evangelista, Stefania | Romanowicz, Paweł |
| Fanghella, Pietro | Rosati Papini, Gastone Pietro |
| Favi, Claudio | Rosso, Carlo |
| Fedák, Viliam | Rubiec, Arkadiusz |
| Feliu, Vicente | Ruiz, Oscar |
| Fitzgerald, Breiffni | Salah, Wael |
| Foszcz, Dariusz | Sánchez, René-Vinicio |
| Francalanza, Emmanuel | Savio, Gianpaolo |
| Frizziero, Leonardo | Schönemann, Lars |
| Furferi, Rocco | Semail, Eric |
| Galdos, Lander | Shemelya, Corey |
| Gallardo-Alvarado, Jaime | Shepherd, Jonathan |
| Galstyan, Vardan | Siami, Ali |
| Gamez-Montero, P.J. | Simionescu, Petru |
| Garrido Jurado, Juan | Socas, Rafael |
| Gasiyarov, Vadim R. | Sohn, Jung Woo |
| Gazizulina, Albina | Solitro, Giovanni Francesco |
| Gianluca, Alaimo | Somov, Yevgeny |
| Giorgetti, Alessandro | Song, Ziyou |
| Grossi, Niccolò | Stavropoulos, Panagiotis |
| Guilbert, Damien | Strazdienė, Eugenija |
| Guo, Jiang | Świercz, Rafał |
| Gusev, Michail | Szabo, Lorand |
| Hamdi, Hédi | Sziebig, Gabor |
| Haupt, Michael | Takeda, Yukio |
| Hernando-Garcia, Jorge | Taler, Jan |
| Herrmann, Thomas | Tappa, Karthik |
| Hoyos Velasco, Fredy | Tavakoli, Ahmad |
| Hsia, Shao-Yi | Taylor, Ambrose |
| Hsiao, Chun-Ching | Tekes, Ayse |
| Hu, Chuan | Theodossiou, Nicolaos |
| Hu, Guobiao | Tiberiu Petrescu, Florian Ion |
| Huang, Haihong | Tlelo-Cuautle, Esteban |
| Huchet, Florian | Toboła, Daniel |
| Hueso, Miguel | Tomasz, Rymarczyk |
| Huston, Dryver | Tomczak, Janusz |
| Huzlik, Rostislav | Torres, David |
| Idehara, Sérgio Junichi | Trapp, Johannes |
| Jackson, Mark | Tsao, Chung-Chen |
| Jagiela, Mariusz | Ullah, AMM Sharif |
| Jalil, Bushra | Valencia-Palomo, Guillermo |
| Jeong, Useok | Valtierra-Rodriguez, Martin |
| Johnson, Mark E | Varma, Vijaykumar B. |
| Joles, Jaap A. | Vázquez, Andrés S. |
| Jonak, Józef | Velamati, Ratna Kishore |
| Judek, Slawomir | Verrelst, Björn |
| Jurca, Florin | Vidakis, Nectarios |
| Kanarachos, Stratis | Višniakov, Nikolaj |
| Kasprzyk, Jerzy | Viveiros, Carla |
| Kato, Hideaki | Vlachos, Dimitrios |
| Kazak, Jan | Wang, Kesheng |
| Kefalas, Themistoklis | Wang, Kundong |
| Kikuchi, Takehito | Wang, Shuangyi |
| Kim, Jang Mok | Wei, Wu |
| Kitahara, Tatsumi | Wieringa, Fokko |
| Koczara, Wlodzimierz | Wiessner, Sven |
| Kolasiński, Piotr | Willert, Andreas |
| Królczyk, Grzegorz | Wojciechowski, Szymon |
| Kunetsov, Vladimir | Xiao, Shaoping |
| Lacerda, Márcio Júnior | Xiong, Yangshou |
| Lara Molina, Fabian Andres | Yunusa-Kaltungo, Akilu |
| Lara, David | Żak, Krzysztof |
| Latypov, Marat | Zhang, Aron |
| Le, NamTuan | Zhang, He |
| Lenzo, Basilio | Zhang, Hong |
| Leonardi, Stefano | Zhou, Jiehan |
| Levi, Alessandro | Zhou, Kan |
| Li, Zhixiong | Zhuang, Yan |
| Liang, Zhiqiang | Zolotová, Iveta |
| Lin, Yu-Chen |
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