TY - BOOK T1 - Portfolio selection : efficient diversification of investments A1 - Markowitz, Harry M LA - English PP - Oxford PB - Basil Blackwell YR - 1991 UL - https://colectivo.uloyola.es/Record/L37239 OP - 384 SN - 1557861080 KW - Cartera de valores : Gestión KW - Inversiones : Análisis ER -