Citation: J. Benoist et N. Popovici, Contractibility of the efficient frontier of three-dimensional simply-shaded sets, J OPTIM TH, 111(1), 2001, pp. 81-116
Citation: J. Benoist et N. Popovici, The structure of the efficient frontier of finite-dimensional completely-shaded sets, J MATH ANAL, 250(1), 2000, pp. 98-117