Yongge Ma (University of Bejing)
24 Jun 2012 – 30 Jun 2012
Ivan Agullo (Pennstate University, Institute for Gravitation and the Cosmos)
18 Jun 2012 – 05 Jul 2012
Jorge Pullin (Louisiana State University)
17 Jun 2012 – 24 Jun 2012
Rudolfo Gambini (Universidad de la Republica, Montevideo, Uruguay)
17 Jun 2012 – 23 Jun 2012
Badri Krishnan (MPI for Gravitational Physics, Albert-Einstein-Institute)
17 Jun 2012 – 22 Jun 2012
Edward Wilson-Ewing (Centre de Physique Theorique de Luminy, University of Marseille)
17 Jun 2012 – 22 Jun 2012
Abhay Ashtekar (Pennstate University, Institute for Gravitation and the Cosmos)
15 Jun 2012 – 04 Jul 2012
Simone Speziale (Centre de Physique Theorique de Luminy, University of Marseille)
11 Jun 2012 – 15 Jun 2012
Jerzy Lewandowski (University of Warsaw)
10 Jun 2012 – 24 Jun 2012
Andrea Dapor (University of Warsaw)
10 Jun 2012 – 24 Jun 2012
Alejandro Perez (Centre de Physique Theorique de Luminy, University of Marseille)
10 Jun 2012 – 15 Jun 2012
William Nelson (Pennstate University, Institute for Gravitation and the Cosmos)
08 Jun 2012 – 14 Jun 2012
Hans Westmann (Perimeter Institute for Theoretical Physics)
04 Jun 2012 – 08 Jun 2012
Johnathan Engle (Florida Atlantic University)
23 May 2012 – 06 Jun 2012
Jose Mourao (Instituto Superior Tecnico, Lisbon)
06 May 2012 – 16 May 2012
William Kirwin (University of Cologne)
06 May 2012 – 15 May 2012
Jerzy Lewandowski (University of Warsaw)
29 Apr 2012 – 05 May 2012
Andrea Dapor (University of Warsaw)
29 Apr 2012 – 05 May 2012
Christoph Stephan (University of Potsdam)
23 Apr 2012 – 25 Apr 2012