@phdthesis{FassoVelenik2003,
author = {Fasso Velenik, Agnese},
year = {2003},
title = {Relative homotopy invariants of the type of the Lusternik-Schnirelmann
category},
type = {Dissertation},
url = "http://dx.doi.org/10.17169/refubium-5722",
}