RRiel's DefenceRiel's Defencede Hans V. HansenMateriasSpeeches, addresses, etc.Forensic orationsRhetoricTrials (treason)MetisCanada, history, 19th centuryCriticism and interpretationTrials, litigationSpeeches, addresses, etc., Canadian (English)History and criticism
PPhylogenetic studies in Compositae tribe MutisieaePhylogenetic studies in Compositae tribe Mutisieae1991
HHybridization within Dahlia (Asteraceae-Coreopsideae)Hybridization within Dahlia (Asteraceae-Coreopsideae)
AA taxonomic revision of the genus Gerbera (Compositae, MutisA taxonomic revision of the genus Gerbera (Compositae, Mutisieae) sections Gerbera, Parva, Piloselloides (in Africa), and Lasiopus