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 85 papers were published in the journal, with a median time to first decision of 18.23 days and a median time from submission to publication of 40 days. The editors would like to express their sincere gratitude to the following reviewers for their generous contribution in 2019:
| Abah Obinna | Lu Hantao |
| Abe Hitoshi | Lushchik Aleksandr |
| Aguirre Nestor F. | Magdysyuk Oxana |
| Agustina Asenjo | Mahabaduge Hasitha |
| Alhaddad Andre | Mallamace Francesco |
| Andreev Pavel | Mankey Gary |
| AnhLe Duc | Mantica Giorgio |
| Aoki Hideo | Marcelli Augusto |
| Aurelian Isar | Marcellini Moreno |
| Bajales Noelia | Marciano Antonino |
| Baker Peter | Marks Laurence |
| Balaz Antun | Martens Craig |
| Bampoulis Pantelis | Martinka Jozef |
| Batistić Ivo | Masuda Ryo |
| Bauer Francois | Maussang Kenneth |
| Belmonte Donato | Mayrhofer Paul |
| Bending Simon | Maździarz Marcin |
| Berciu Mona | Melko Joshua |
| Bertel Erminald | Miao Guoxing |
| Bianconi Antonio | Miao Hu |
| Bighin Giacomo | Micnas Roman |
| Bjeliš Aleksa | Mizsei János |
| Błachowicz Tomasz | Modak Ranjan |
| Bocîrnea Amelia Elena | Morales-Garcia Angel |
| Burchianti Alessia | Morozov Ilya |
| Bussmann-Holder Annette | Mortazavi Bohayra |
| Campi Gaetano | Moskvin A.S. |
| Caprara Sergio | Mukhin Sergei I. |
| Cardoso Wesley B. | Muscas Giuseppe |
| Carlo Gabriel | Nagy Dénes Lajos |
| Carretta Pietro | Nemes Norbert M. |
| Cea Tommaso | Nemnes George Alexandru |
| Chen Shuo | Ngo Duc-The |
| Chotorlishvili Levan | Nishimoto Yoshio |
| Choudhury Udit | Noce Canio |
| Chroneos Alexander | Oleś Andrzej M. |
| Ciuchi Sergio | Osán János A. |
| Czyzycki Mateusz | Palumbo Fabrizio |
| D’Acapito Francesco | Paraoanu Gheorghe Sorin |
| Debnath Shantanu | Park Ji-Sang |
| Delfanazari Kaveh | Paunkovic Nikola |
| Deng Hai-Yao | Perali Andrea |
| Dery Hanan | Perez Armando |
| DI Molfetta Giuseppe | Perucchi Andrea |
| Dilley N R | Poccia Nicola |
| Dordevic Sasa V. | Portugal Renato |
| Doria Mauro | Profeta Gianni |
| Du Yong | Ptok Andrzej |
| Durajski Artur P. | Pustogow Andrej |
| Encinosa Mario R. | Quesada Adrián |
| Engel Dieter | Ran Shiju |
| Erba Marco | Repa Kristen Stojak |
| Esplandiu Maria Jose | Rezaee Mehdi |
| Fanelli Victor | Rizal Conrad |
| Finegan Donal P. | Rota Riccardo |
| Friedman Eliahu | Rumpf Klemens |
| Frielinghaus Henrich | Saini Naurang |
| Gaczynska Maria | Santos Lea Ferreira Dos |
| Galanakis Iosif | Sanz Ortiz Ángel Santiago |
| Garoufalis Christos | Scaramuzza Matteo |
| Gazeau Jean-Pierre | Sedrakian Armen |
| Ghosh Arnab | Shenderovich Ilya G. |
| Giaccherini Andrea | Shepelyansky Dima L. |
| Gong Jiangbin | Sherrell Peter |
| Grbić Mihael | Shi Zhenzhong |
| Grill Roman | Shikano Yutaka |
| Heath George | Shimazoe Kenji |
| Herman Michael | Shirai Kouun |
| Hess Henry | Shum Henry |
| Hiroi Zenji | Simonelli Laura |
| Hirsch Jorge | Song Jingfeng |
| Honda Yosuke | Song Kenan |
| Honecker Andreas | Song Zhaoning |
| Hönnicke Marcelo Gonçalves | Sowiński Tomasz |
| Hu Qing-Miao | Spagnolo Nicolò |
| Iannuzzi Clara | Succi Sauro |
| Ikeda Hiroaki | Sugawa Kosuke |
| Ikeda Tatsuhiko N. | Sunko Denis |
| Ikemoto Yuka | Suzuki Akito |
| Irizawa Akinori | Taran Elena |
| Jadaun Priyamvada | Tarasenko Alexander |
| Jaúregui Rocío | Tawfik Sherif Abdulkader |
| Jia Jinfeng | Tessarotto Massimo |
| Kagalovsky Victor | Tinti Gemma |
| Kanngießer Birgit | Tokatly Ilya |
| Kapcia Konrad Jerzy | Tokura Yasuhiro |
| Karasiev Valentin V. | Torres-Diaz Isaac |
| Karchev Naoum | Tran Fabien |
| Katin Konstantin P. | Tranquada John M. |
| Kayser Yves | Trigueros Anna |
| Kenter Almus | Trinkler Laima |
| Kibler Maurice R. | Trushechkin Anton |
| Kim Hyun Tak | Tsuji Naoto |
| Kim Hyunsoo | Tsuru Takeshi Go |
| Kim Kyoung-Whan | Van Der Beek Cornelis |
| Kirz Janos | Varga Tamas |
| Klemm Richard | Vejpravova Jana |
| Kobayashi Kaya | Vener Mikhail V. |
| Kogan Vladimir | Wachulak Przemysław |
| Kokkoris George | Wang Baomin |
| Koumoulis Dimitrios | Wang Qisi |
| Krellner Cornelius | Wang Xiaoyu |
| Kriener Markus | Wang Zhongchang |
| Kumar Dushyant | Wen Jinsheng |
| Kunstmann J. | Wimberger Sandro |
| Kuntsevich Alexander Yu | Wronska Aleksandra |
| Kurlyandskaya Galina V. | Yan Di |
| Kuś Marek | Yang Fan (Beijing Institute of Technology) |
| La Magna Antonino | Yang Fan (Tianjin University) |
| Langer Jerzy J. | Yang Kesong |
| Lee Byeongchan | Yang Wanli |
| Lefkidis Georg | Yoo Hyun Jae |
| Leggio Bruno | Zakrzewski Jakub |
| Lepore Giovanni Orazio | Zaťko Bohumír |
| Li Hao | Zaytsev Kirill |
| Liu Mengkun | Zdilla Michael J. |
| Liu Xinyu | Zegrodnik Michal |
| Long Nicholas J. | Zhang Weiwei |
| Lorenzana José | Zhao Lianfeng |
| Love Peter | ZhaoXinluo |
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