@article{701099,
     title = {A Dini principle for convex functions and the theorem of James},
     booktitle = {Abstracta. 5th Winter School on Abstract Analysis},
     series = {GDML\_Books},
     publisher = {Czechoslovak Academy of Sciences},
     address = {Praha},
     year = {1977},
     pages = {91-93},
     url = {http://dml.mathdoc.fr/item/701099}
}

Rodé, Gerd. A Dini principle for convex functions and the theorem of James, dans Abstracta. 5th Winter School on Abstract Analysis, GDML_Books,  (1977), pp. 91-93. http://gdmltest.u-ga.fr/item/701099/