@Article{ Martínez-Álvarez_VILLENA:201-212,

author = { Fernando Martínez-Álvarez and ARMANDO REYES VILLENA MUÑOZ } ,

title = { RANDOM COMMUTATION },

journal = { Proceedings of the Indian Academy of Sciences. Mathematical Sciences },

year = { 1997 },

volume = { 107 },

pages = { 201-212 },

}