Journal Article Dimensions of scientific collaboration and its contribution to the academic research groups' scientific quality Get access Helga Bermeo Andrade, Helga Bermeo Andrade Search for other works by this author on: Oxford Academic Google Scholar Ernesto de los Reyes López, Ernesto de los Reyes López Search for other works by this author on: Oxford Academic Google Scholar Tomas Bonavia Martín Tomas Bonavia Martín Search for other works by this author on: Oxford Academic Google Scholar Research Evaluation, Volume 18, Issue 4, October 2009, Pages 301–311, https://doi.org/10.3152/095820209X451041 Published: 01 October 2009