Gómez-Rúa, María and Vidal-Puga, Juan (2008): Balanced per capita contributions and levels structure of cooperation. Unpublished.
Gomez-Rua, Maria and Vidal-Puga, Juan (2006): No advantageous merging in minimum cost spanning tree problems. Unpublished.
Gómez-Rúa, María and Vidal-Puga, Juan (2008): The axiomatic approach to three values in games with coalition structure. Unpublished.
Bergantiños, Gustavo and Vidal-Puga, Juan (2009): The folk solution and Boruvka's algorithm in minimum cost spanning tree problems. Unpublished.
