@phdthesis{Ferguson2011,
author = {Ferguson, N.},
title= {Methods and software for nonparametric estimation in multistate models},
year = {2011},
URL = {http://digital.library.louisville.edu/cdm/singleitem/collection/etd/id/2232/rec/1
%[21 March 2104)},
type = {PhD dissertation},
address = {Louisville, Kentucky},
publisher = {University of Louisville},
}