Bulgarian Digital Mathematical Library BulDML and Czech Digital Mathematical Library DML-CZ as parts of the European Digital Mathematics Library
in Proceedings of the Digital Presentation and Preservation of Cultural and Scientific Heritage 2012, Veliko Tarnovo, Bulgaria, 18.9.2012 - 21.9.2012, editor(s): Pavlov Radoslav, Stanchev Peter, Digital Presentation and Preservation of Cultural and Scientific Heritage. International Conference, Veliko Tarnovo, Bulgaria, September 18-21, 2012. Proceedings, Institute of Mathematics and Informatics BAS, Sofia, 2012, 60-67.
in Proceedings of the DML 2011. Towards a Digital Mathematics Library, Bertinoro, Italy, 20.7.2011 - 21.7.2011, editor(s): Sojka Petr, Bouche Thierry, DML 2011. Towards a Digital Mathematics Library, Masaryk University Press, Brno, Brno, 2011, 9-14.
From pixels and minds to the mathematical knowledge in a digital library
in Proceedings of the DML 2008. Towards Digital Mathematics Library, Birmingham, 27.7.2009, editor(s): not available, DML 2008. Towards Digital Mathematics Library, Masarykova univerzita v Brne, Brno, 2008, 17-27.
in Proceedings of the Communicating Mathematics in the Digital Era, Aveiro, 15.8.2008 - 18.8.2008, editor(s): Jonathan M. Borwein, Eugenio M. Rocha, José-Francisco Rodrigues, Communicating Mathematics in the Digital Era, A.K. Peters, Ltd., Wellesley, Massachusetts, 2008, 75-86.
in Proceedings of the Function Spaces, Differential Operators and Nonlinear Analysis, Syote, 10.6.1999 - 16.6.1999, editor(s): Mustonen, V. - Rákosník, J., Function Spaces, Differential Operators and Nonlinear Analysis, Mathematical Institute of the Academy of Sciences of the Czech Republic, Praha, 2000, 220-228.