Glucosinolate Survey of Cultivated and Feral Mashua (Tropaeolum tuberosum Ruíz & Pavón) in the Cuzco Region of Peru (2006)
Genetic diversity of the Andean tuber-bearing species, oca (Oxalis tuberosa Mol.), investigated by inter-simple sequence repeats (2006)
Effects of post-harvest treatments on the carbohydrate composition of yacon roots in the Peruvian Andes (2004)
Taxonomy of Mexican and Central American Members of Solanum Series Conicibaccata (sect. Petota) (2001)
Association of Ecogeographical Variables and RAPD Marker Variation in Wild Potato Populations of the USA (2000)