@article{MAN_1970__188_162042,
     author = {T. HITSAIN and I. TWEDDLE},
     title = {On the {Extreme} {Points} of the {Sum} of {Two} {Compact} {Convex} {Sets.}},
     journal = {Mathematische Annalen},
     pages = {113--122},
     publisher = {mathdoc},
     volume = {188},
     year = {1970},
     url = {http://geodesic.mathdoc.fr/item/MAN_1970__188_162042/}
}