My co-authors (alphabetically ordered) are:
Hideo Bannai, Laura Barker, Therese Biedl, Ahmad Biniaz, Paolo Bottoni, Henning Bordihn, Juan Castellanos, Robert Cummings, James Currie, Jürgen Dassow, Joel D. Day, Adrian Diaconu, Liviu P. Dinu, Cezara Dragoi, Marius Dumitran, Thorsten Ehlers, Szilárd Zsolt Fazekas, Henning Fernau, Pamela Fleischmann, Jesús García López, Pawel Gawrychowski, Javier Gil, Radu Gramatovici, Cristian Grozea, Katharina Harwardt, Tomohiro I, Shunsuke Inenaga, Masami Ito, Nataša Jonoska, Dominik Köppl,
Maria Kosche,
Dmitry Kosolobov,
Tore Koss,
Mitja Kulczynski
Anna Labella, Marie Lejeune, Peter Leupold, Remco Loos, Anna Lubiw, Maurice Margenstern, Carlos Martin-Vide,
Yoshiaki Matsuoka,
Robert Mercas, Luis Fernando de Mingo Lopez, Victor Mitrana, Mike Müller, Dirk Nowotka, Ion Petre, Mario J. Perez-Jimenez, Calina Ploscaru, Danny Poulsen, Michel Rigo, Kamellia Reshadi, Markus L. Schmid,
Shinnosuke Seki, Mohd Hasan Selamat, Jose M. Sempere, Radoslaw Serafin,
Stefan Siemer,
Jeffrey O. Shallit, Kayoko Shikishima-Tsuji, Masayuki Takeda, Catalin Tiseanu, Bianca Truthe, Sherzod Turaev, Daniel-Claudian Voinescu, Takashi Yokomori.