エンニオ・デ・ジョルジ
De Giorgi, Ennio; Colombini, Ferruccio; Piccinini, Livio (1972) (Italian), Frontiere orientate di misura minima e questioni collegate [Oriented boundaries of minimal measure and related questions], Quaderni, Pisa: Edizioni della Normale, pp. 180, MR493669, Zbl 0296.49031 . An advanced text, oriented to the theory of minimal surfaces in the multi-dimensional setting, written by some of the leading contributors to the theory.