@book{701622, title = {Proceedings of the 18th Winter School "Geometry and Physics"}, series = {GDML\_Books}, publisher = {Circolo Matematico di Palermo}, address = {Palermo}, year = {1999}, mrnumber = {MR1692255}, zbl = {0913.00039}, url = {http://dml.mathdoc.fr/item/701622} }
Slovák, Jan; Čadek, Martin (éd.). Proceedings of the 18th Winter School "Geometry and Physics". GDML_Books (1999), http://gdmltest.u-ga.fr/item/701622/