1 - An introduction to the theory of infinite series - Second editionBromwich, Thomas John L'Anson (1875-1929) / MacRobert, Thomas Murray (1884-1962) / Croft, Hallard T.Cote : [20 BRO 65]
2 - Unsolved problems in geometry Croft, Hallard T. / Falconer, Kenneth J. (1952-....) / Guy, Richard K. (1916-....)Cote : [60 CRO 91]