Literature references are often written with abbreviated titles. An example is:
J. Selva-Vera, Subspace methods to multipath mitigation in a navigation receiver, in: Proc IEEE VTC 1999Probably the most troublesome part of this is the Proc IEEE VTC, as it can make finding the item difficult. To translate the abbreviation (to: Proceedings of the IEEE Vehicular Technology Conference) try consulting the resources mentioned below or ask your Subject Librarian for help.