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 29 papers were published in the journal, with a median time to first decision of 22 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:
| Abel, Steven | Mainland, G. Bruce |
| Apsimon, Robert | Marciano; Antonino |
| Arrasmith, William Wolfgang | Maza, Diego |
| Balachandran, Vinitha | Mazzitelli, Francisco Diego |
| Bamba, Kazuharu | Mielke, Eckehard |
| Bazin, Daniel | Milton, Kimball A. |
| Bella, Federico | Mitchison, Timothy |
| Benakli, Karim | Müller, Ingmar |
| Berezhiani, Zurab | Mulligan, Bernard |
| Brevik, Iver H. | Odintsov, Sergei |
| Broniowski, Wojciech | O'Hern, Corey S. |
| Cacciatori, Sergio | Palasantzas, George |
| Celada, Mariano | Pantaleone, James |
| Cembranos, Jose | Papavassiliou, Dimitrios |
| Chamkha, Ali | Paraoanu, Gheorghe |
| Cheoun, Myung-Ki | Patricelli, Barbara |
| Cirio, Mauro | Pikovsky, Arkady |
| Cleaver, Gerald | Pirozhenko, Irinia |
| Csörgő, Tamás | Pokotilovski, Yuri N. |
| Davidson, Aharon | Pop, Ioan |
| Delgado, Francisco | Recio, José Manuel |
| Deppman, Airton | Rizzuto, Lucia |
| Dietrich, Tim | Rubio Lopez, Adrian |
| Ekiel-Jezewska, Maria L. | Sakharov, Alexander S. |
| Fillion-Gourdeau, François | Sandev, Trifce |
| Giordano, Stefano | Schenke, Björn |
| González-Díaz, Diego | Schioler, Henrik |
| Goodsell, Mark | Schlichting, André |
| Hallock, Robert | Shapovalov, Alexander |
| Han, Qun | Sheremet, Mikhail |
| He, Jihuan | Stanton, Liam |
| Hristov, Jordan | Stoneking, Matthew |
| Hu, Ming | Struckmeier, Jürgen |
| Ingold, Gert-Ludwig | Svetovoy, Vitaly B. |
| Iomin, Alexander | Thomas, Alexander |
| Kagalovsky, Victor | Tiemblo Magro, Pilar |
| Kavan, Ladislav | Troshin, Sergey |
| Khabarova, Ksenia | Tuchin, Kirill |
| Khlopov, Maxim | Velten, Hermano |
| Kiselev, Aleksei P. | Wang, Yaocen |
| Kobakhidze, Archil | Warner, Mark |
| Konoplich, Rostislav | Wilk, Grzegorz |
| Kuklov, Anatoly | Wurtele, Jonathan |
| Kulchitsky, Yuri | Xu, Yong |
| Kwapiński, Tomasz | Yablonsky, Gregory S. |
| Li, Xinzhong | Yun, Sining |
| Li, Zhixiong | Zakrzewski, Jakub |
| Liu, Wuming | Zhang, Yonggang |
| Lucia, Umberto | Zhuk, Alexander |
| Macchi, Andrea |
© 2020 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/).