Variations on the theorem of Birkhoff-von Neumann and extensions

de Werra, D.2006-08-162006-08-162006-08-16200310.1007/s00373-002-0496-6https://infoscience.epfl.ch/handle/20.500.14299/233065WOS:0001835841000113850Variations on the theorem of Birkhoff-von Neumann and extensionstext::journal::journal article::research article