TY - JOUR AU - A. Pełczyński TI - A characterization of Hilbert-Schmidt operators JO - Studia Mathematica PY - 1966 SP - 355 EP - 360 VL - 28 IS - 3 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.4064/sm-28-3-355-360/ DO - 10.4064/sm-28-3-355-360 LA - en ID - 10_4064_sm_28_3_355_360 ER -