http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
proceedings of the Second Topology Symposium held in Siegen, FRG, Jul. 27-Aug. 1, 1987
Topology Symposium 1987 : Siegen, Germany)
Lecture notes in mathematics (Springer-Verlag) ; 1350