[1] J. P. R. Christensen P. S. Kenderov: 
Dense strong continuity of mappings and the Radon-Nikodym property. Math. Scand. 54 (1984), 70-78. 
MR 0753064[2] P. S. Kenderov: 
Multivalued monotone mappings are almost everywhere singlevalued. Studia Math. 56 (1976), 199-203. 
MR 0428122[3] P. S. Kenderov: 
Monotone operators in Asplund spaces. Compt. Rend. Acad. Sci. Bulgare 30 (1977), 963-964. 
MR 0463981 | 
Zbl 0377.47036[4] J. Kolomý: 
Set-valued mappings and structure of Banach spaces. Rend. Circolo Mat. di Palermo (to appear). 
MR 0920867