Baruch, Zdravko (20 March 1984). "Ordination and Classification of Vegetation along an Altitudinal Gradient in the Venezuelan Páramos". Vegetation. 2. 55 (2): 115–126. doi:10.1007/BF00037333. S2CID25470421.
Hofstede, Robert; Arnout Rossenaar (February 1995). "Biomass of Grazed, Burned, and Undisturbed Páramo Grasslands, Colombia. II. Root Mass and Aboveground:Belowground Ratio". Arctic and Alpine Research. 27 (1): 13–18. doi:10.2307/1552063. JSTOR1552063.
Rai, H; Khare, R; Baniya, CB; Upreti, DK; Gupta, RK (2015). "Elevational gradients of terricolous lichen species richness in the Western Himalaya". Biodiversity and Conservation. 24 (5): 1155–1174. doi:10.1007/s10531-014-0848-6. S2CID6275428.
Suárez, Esteban; Galo Medina (May 2001). "Vegetation Structure and Soil Properties in Ecuadorian Páramo Grasslands with Different Histories of Burning and Grazing". Arctic, Antarctic, and Alpine Research. 33 (2): 158–164. doi:10.2307/1552216. JSTOR1552216.
Hofstede, Robert; Arnout Rossenaar (February 1995). "Biomass of Grazed, Burned, and Undisturbed Páramo Grasslands, Colombia. II. Root Mass and Aboveground:Belowground Ratio". Arctic and Alpine Research. 27 (1): 13–18. doi:10.2307/1552063. JSTOR1552063.
Suárez, Esteban; Galo Medina (May 2001). "Vegetation Structure and Soil Properties in Ecuadorian Páramo Grasslands with Different Histories of Burning and Grazing". Arctic, Antarctic, and Alpine Research. 33 (2): 158–164. doi:10.2307/1552216. JSTOR1552216.
Baruch, Zdravko (20 March 1984). "Ordination and Classification of Vegetation along an Altitudinal Gradient in the Venezuelan Páramos". Vegetation. 2. 55 (2): 115–126. doi:10.1007/BF00037333. S2CID25470421.
Rai, H; Khare, R; Baniya, CB; Upreti, DK; Gupta, RK (2015). "Elevational gradients of terricolous lichen species richness in the Western Himalaya". Biodiversity and Conservation. 24 (5): 1155–1174. doi:10.1007/s10531-014-0848-6. S2CID6275428.