@article{701133,
     title = {On the points of multivaluedness of monotone operators},
     booktitle = {Abstracta. 6th Winter School on Abstract Analysis},
     series = {GDML\_Books},
     publisher = {Czechoslovak Academy of Sciences},
     address = {Praha},
     year = {1978},
     pages = {101-103},
     url = {http://dml.mathdoc.fr/item/701133}
}

Zajíček, L. On the points of multivaluedness of monotone operators, dans Abstracta. 6th Winter School on Abstract Analysis, GDML_Books,  (1978), pp. 101-103. http://gdmltest.u-ga.fr/item/701133/