TY - JOUR AU - Radoslaw Szwedek TI - Interpolation of approximation numbers between Hilbert spaces JO - Annales Fennici Mathematici PY - 2015 SP - 343 EP - 360 VL - 40 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.5186/aasfm.2015.4014/ DO - 10.5186/aasfm.2015.4014 LA - en ID - AFM_2015_40_1_a18 ER -