... during workshops at Mathematisches Forschungsinstitut Oberwolfach, Germany:

Summerschool of the "CENTRAL" project at Adlershoff, Humboldt Universitat zu Berlin, Aug.29-Sep.2, 2016.

... during workshops at WIAS Berlin: `PDE 2019: Partial Differential Equations in Fluids and Solids' Sept. 9-13, 2019, `Analysis of Evolutionary and Complex Systems (ALEX2018)' Sept. 24-28, 2018, `Modeling Materials and Fluids using Variational Methods' Feb.22-26,2016, `Theory and Applications of Partial Differential Equations' Nov.30-Dec.4,2015, and `Modeling and Analysis of Phase Separation, Damage and Fracture' Sept.21-23,2011.

... repacking of a box with authors' copies of the monograph with Alexander Mielke after 8-year lasting work in his Berlin's office, Nov.5, 2015:

... during a conference `Interfaces an discontinuities in solids, liquids and crystals' (INDI 2011) at Lago di Garda, Italy, on June 20-23, 2011:

... during a meeting at Kramarova Vila in Prague on Feb.23, 2010:

... during the 2007 Graduirtenkoleg 1128 Berlin Autumn School in Prag:

... being apointed a full professor in April 2007:

... during the Worskhop Praha-Heidelberg, Dec. 2004, Charles Uni., Praha.

... at "STAMM04: Int. symp. on Trends in Applications of Mathematics to Mechanics" at Lufthansa Bildungszentrum, Seeheim, Aug. 2004.

... at Worskhop "Control of Partial Differential Equations", Dec. 2003, TU Berlin.

... at Eglin Air-Force-Base Museum, Florida, 2003:

... at the Karlin's faculty building after flooding, Prague, Oct.21-23, 2002:

... at Carnegie-Mellon University, Pittsburgh, PA, during CNA Summer school 2001:

... at Weierstrass Institut, Berlin, during the conference "Fast solution of discretized optimization problems", 2000:

... at Ministery of Education, Prague, 1999:

... during the Alexander-von-Humboldt Foundation annual meeting in 1991 in Bonn: