Rigorous peer-review is the corner-stone of high-quality academic publishing. The editorial team greatly appreciates the reviewers who contributed their knowledge and expertise to the journal’s editorial process over the past 12 months. With their support, more than 100 papers were processed in the journal in 2018. A total of 50 papers were published, with a median time to first decision of 16.5 days and a median time to publication of 45.5 days. The editors would like to express their sincere gratitude to the following reviewers for their cooperation and dedication in 2018:
| Ahmed, Abu-Siada | Jaewook, Lee |
| Syyed, Adnan Raheel Shah | Gaetano, Licitra |
| Martin, Agelin-Chaab | Yorick, Ligen |
| Pouria, Ahmadi | Aaron, Loiselle-Lapointe |
| Hadi, Amini | Jorge, Lopez-Sanz |
| M. Hadi, Amini | Giuseppe, Loprencipe |
| Enrico, Armentani | Fei, Lu |
| Jesús Sergio, Artal-Sevil | Chao, Luo |
| Muhammad, Aziz | Chen, Lv |
| Luis, Bañón | Khawaja Khalid, Mehmood |
| Slavomir, Bednar | Jérôme, Mendes |
| Nicu, Bizon | Mark, Mennenga |
| David, Borge-Diez | Jeremy, Michalek |
| John T., Boys | James F., Miller |
| Inga, Bürger | Peter, Mock |
| Andrew, Burnham | Vítor Duarte Fernandes, Monteiro |
| Hector, Campello-Vicente | Jan, Moravek |
| Clemente, Capasso | Adrián, Mota-Babiloni |
| C. C., Chan | Keiichi, Motoyama |
| Gautham Ram, Chandra Mouli | Alexander, Müller |
| Huicui, Chen | Magesh, Nagarajan |
| ZongHai, Chen | An, Neven |
| Chunhui, Chen | Alexandros, Nikitas |
| Zheng, Chen | Marcin, Noga |
| Cheng Siong, Chin | Olufemi A., Omitaomu |
| Paolo, Cicconi | Yuki, Orikasa |
| Massimo, Conti | Ting-Chia, Ou |
| Bálint, Csonka | Mihrimah, Ozkan |
| Angel, Cuadras | Daniel, Paluszczyszyn |
| Cedric, De Cauwer | Paulo J. G., Pereirinha |
| Marco Claudio, De Simone | T. H., Pham |
| Francesco, Del Pero | Savvas, Piperidis |
| Satadru, Dey | Tobias, Placke |
| Grzegorz, Dombek | Adrian, Plesca |
| Matthieu, Dubarry | Anna, Popp |
| Michael, Duoba | Ferry, Pramudianto |
| You Hong, Eng | Olegas, Prentkovskis |
| Emre, Erdem | Anton, Rassõlkin |
| Damla, Eroglu | Eduardo, Redondo-Iglesias |
| Joao, Ferreira | Andreas-Michael, Reinhardt |
| Michael, Fowler | Dipankar, Roy |
| Sánchez Sutil, Francisco José | Reza, Sabzehgar |
| Keith, Friedman | Rasoul, Salehi |
| Foad, Gandoman | Christophe, Savard |
| Feng, Gao | Stephan, Schmid |
| Linda, Gao | Saeed, Sepasi |
| Carmelo R., García | Aditya, Shekhar |
| Jozef, Gasparik | Hsin-Jang, Shieh |
| Bo, Geng | Rajendra, Singh |
| Manuela, González | João, Soares |
| Jesus, Gonzalez-Feliu | Kai, Song |
| Giorgio, Graditi | Ziqi, Song |
| Jens, Groot | Aldo, Sorniotti |
| Thomas, Grube | Robert, Steinberger-Wilckens |
| Keith S, Hardy | Thomas, Stephens |
| Kevin, Heaslip | Laura, Tribioli |
| Jesus C., Hernandez | Scott, Trimboli |
| Eklass, Hossain | Peter, Van den Bossche |
| Jianjun, Hu | Alex, Van Den Bossche |
| Xiaosong, Hu | Ottorino, Veneri |
| Yihua, Hu | Fabio, Viola |
| Jia-Sheng, Hu | Guido, Wager |
| Nilesh, Ingale | Qiang, Wang |
| Christos, Ioakimidis | Marcin, Wardach |
| Arunkumar, Jayakumar | Zhongbao, Wei |
| Junbo, Jia | Stefan, Wiesner |
| Severin, Kamguia Simeu | Jeffrey, Wishart |
| Sten, Karlsson | Xiaomin, Xi |
| Grzegorz, Karoń | Wu, Xiaogang |
| Naoya, Kasai | Min, Xu |
| Kwang Sik, Kim | Yuanbin, Yu |
| Joaquin, Klee Barillas | Xinmei, Yuan |
| Eleftheria, Kontou | Lijun, Zhang |
| Richard, Kotter | Weige, Zhang |
| Julia, Kowal | Lei, Zhang |
| Jian-long, Kuo | Huayang, Zhu |
| Charilaos, Latinopoulos | Gaetano, Zizzo |
| Stavros, Lazarou | Changfu, Zou |
© 2019 by the author. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).