@article{AUCMP_2001_42_2_a0,
     author = {Ti\v{s}er, Jaroslav and Balcar, Bohuslav},
     title = {Foreword},
     journal = {Acta Universitatis Carolinae. Mathematica et Physica},
     pages = {3},
     year = {2001},
     volume = {42},
     number = {2},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/AUCMP_2001_42_2_a0/}
}