| Moluscos del Perú R Ramírez, C Paredes, J Arenas Revista de Biología Tropical 51 (3), 225-284, 2003 | 193 | 2003 |
| The introduction of nonnative fishes into freshwater systems of Peru H Ortega, H Guerra, R Ramírez Ecological and genetic implications of aquaculture activities, 247-278, 2007 | 58 | 2007 |
| Biodiversidad y taxonomía de micromoluscos Punctoidea del sur de Brasil, con la descripción de una nueva especie de Radiodiscus de la Mata Atlántica (Mollusca, Gastropoda … S Miquel, R Ramírez, W Thomé Revista del Museo Argentino de Ciencias Naturales nueva serie 9 (2), 205-230, 2007 | 26 | 2007 |
| A generic analysis of the family Systrophiidae (Mollusca: Gastropoda): Taxonomy, Phylogeny and Biogeography RL Ramírez University of Kansas, 1993 | 16 | 1993 |
| Analysis of the secondary structure of mitochondrial LSU rRNA of Peruvian land snails (Orthalicidae: Gastropoda) J Ramirez, R Ramírez Revista Peruana de Biología 17 (1), 53-57, 2010 | 15 | 2010 |
| Response of a land snail species (Bostryx conspersus) in the Peruvian Central Coast Lomas Ecosystem to the 1982-1983 and 1997-1998 El Niño events R Ramirez, S Cordova, K Caro, J Duárez Fieldiana, Botany 43, 10-23, 2003 | 10 | 2003 |
| First records of actual and fossil Stephadiscus outside Patagonia, and description of a new amazonian species (Mollusca: Pulmonata: Charopidae) SE Miquel, R Ramirez E Schweizerbartsche Verlags, 2011 | 8 | 2011 |
| Diversity of land mollusks in the bamboo-dominated forest of the lower Urubamba region, Peru R Ramírez, S Córdova, K Caro ALONSO, A., DALLMEIER, F. and CAMPBELL, P. Urubamba: The Biodiversity of a …, 2001 | 6 | 2001 |
| Molecular evidence for the polyphyly of Bostryx (Gastropoda: Bulimulidae) and genetic diversity of Bostryx aguilari JL Ramirez, R Ramírez Zoologia (Curitiba) 30, 80-87, 2013 | 5 | 2013 |
