The following publications are possibly variants of this publication:
- The Ackermann Award 2009Johann A. Makowsky, Alexander A. Razborov. csl 2009: 561-565 [doi]
- The Ackermann Award 2010Johann A. Makowsky, Damian Niwinski. csl 2010: 544-546 [doi]
- The Ackermann Award 2012Thierry Coquand, Anuj Dawar, Damian Niwinski. csl 2012: 1-5 [doi]
- The Ackermann Award 2013Anuj Dawar, Thomas A. Henzinger, Damian Niwinski. csl 2013: 1-4 [doi]
- The Ackermann Award 2007Martin Grohe, Martin Hyland, Johann A. Makowsky, Damian Niwinski. csl 2007: 589-597 [doi]
- The Ackermann Award 2006Samson Abramsky, Erich Grädel, Johann A. Makowsky. csl 2006: 622-626 [doi]
- The Ackermann Award 2005Erich Grädel, Janos Makowsky, Alexander A. Razborov. csl 2005: 557-565 [doi]