T. Zamfirescu, at Convexity, Topology, Combinatorics and Beyond. Workshop in honour of Luis Montejano's 60th birthday, Puerto Vallarta, Mexico, October 2011.

T. Zamfirescu, at 5th International Conference on Research and Education in Mathematics, Bandung, Indonesia, October 2011.

T. Zamfirescu, at An Encounter of Algebra and Geometry: A Sharing and Learning Conference; dedicated to Barbu Berceanu for his 60th birthday, Lahore, Pakistan, November 2011.

T. Zamfirescu, at Spring Workshop on Recent Advances in Graph Theory and Combinatorics, Lahore, Pakistan, February 2012.

T. Zamfirescu, at Szeged Workshop in Convex and Discrete Geometry, Szeged, Hungary, May 2012.

T. Zamfirescu, at International Conference on the Mathematics of Distances and Applications, Varna, Bulgaria, July 2012.

T. Zamfirescu, at Fixed Point Theory and its Applications, Cluj-Napoca, Roumania, July 2012.

T. Zamfirescu, at The Fourth Geometry Meeting, dedicated to the centenary of A. D. Alexandrov, Saint-Petersburg, Russia, August 2012.

J. Rouyer, at Colloque de géométries, Mulhouse, France, September 2012.

C. Vîlcu, at Colloque de géométries, Mulhouse, France, September 2012.

T. Zamfirescu, at Colloque de géométries, Mulhouse, France, September 2012.

T. Zamfirescu, at 6th World Conference on 21st Century Mathematics 2013, Lahore, Pakistan, March 2013.

C. Vîlcu, at International Conference. Experimental and Theoretical Methods in Algebra, Geometry and Topology, Eforie Nord, Roumania, June 2013.

T. Zamfirescu, at Anniversary Conference Faculty of Sciences - 150 years, Bucharest, Roumania, August 2013.

C. Vîlcu, at Anniversary Conference Faculty of Sciences - 150 years, Bucharest, Roumania, August 2013.

K. Adiprasito, at 12th International Conference on Discrete Mathematics: Discrete Geometry and Alexandrov surfaces, Bucharest, Roumania, September 2013.

J. Rouyer, at 12th International Conference on Discrete Mathematics: Discrete Geometry and Alexandrov surfaces, Bucharest, Roumania, September 2013.

C. Vîlcu, at 12th International Conference on Discrete Mathematics: Discrete Geometry and Alexandrov surfaces, Bucharest, Roumania, September 2013.

J. Rouyer, at 4th Workshop for Young Researchers in Mathematics, Constanta, Roumania, May 2014.

C. Vîlcu, at 4th Workshop for Young Researchers in Mathematics, Constanta, Roumania, May 2014.

J. Rouyer, at Geometry Conference, Mulhouse, France, September 2014.

T. Zamfirescu, at Fifth International Conference on Combinatorics, Graph Theory, and Applications, Elgersburg, Germany, March 2015.

C. Vîlcu, at 5th Workshop for Young Researchers in Mathematics, Constanta, Roumania, May 2015.

C. Vîlcu, at The Eighth Congress of Romanian Mathematicians, Iasi, Roumania, June 2015.

J. Rouyer, at Geodesics and related topics, Kumamoto, Japan, January 2016.

J. Rouyer, at Intuitive Geometry, Kumamoto, Japan, February 2016.