A polynomial time algorithm for a hemispherical minimax location problem. - Pratibhamoy Das; N. R. Chakraborty; P. K. Chaudhuri (Oper. Res. Lett., 1999)

Spherical Minimax Location Problem. - Pratibhamoy Das; N. R. Chakraborty; P. K. Chaudhuri (Comput. Optim. Appl., 2001)