author = { Krzyżanowska, Iwona AND Nowel, Aleksandra },

title = { Criteria for singularities for mappings from two-manifold to the plane. The number and signs of cusps },

publisher = {Tokyo Institute of Technology, Department of Mathematics},

isbn = {0386-5991},

keywords = { General Mathematics },

year = {2017},

url = { http://slubdd.de/katalog?TN_libero_mab2 }