TY - JOUR AU - Tiao, George C. AU - Guttman, Irwin TI - Some Useful Matrix Lemmas in Statistical Estimation Theory* JO - Canadian mathematical bulletin PY - 1964 SP - 297 EP - 300 VL - 7 IS - 2 UR - http://geodesic.mathdoc.fr/articles/10.4153/CMB-1964-029-7/ DO - 10.4153/CMB-1964-029-7 ID - 10_4153_CMB_1964_029_7 ER -