arXiv 2006-07-27 EN Homeomorphisms and the homology of non-orientable surfaces Gadgil, Siddhartha · Pancholi, Dishant
arXiv 2002-08-24 EN Sections of Serre fibrations with low-dimensional fibers Brodsky, N. · Chigogidze, A. · Shchepin, E. V.