00699nam a2200193Ia 4500082002000000100002500020245014900045260004900194300001000243490003800253500000500291690000600296700000500302904005200307952010200359964001700461921001000478999001700488  a515.73bC569.AT  aCiesielski, Zbigniew  aApproximation theorybpapers presented at the Stefan Banach International Mathematical Center at the 6th semester held on Sept. 17-Dec. 17, 1975  aWarszawabPolish Scientific Publishersc1979  a316p.  aBanach Center Publicationsv v. 4  a  a   a  aStefan Banach International Methematical Center  00104070aISIbISId1998-09-16l0o515.73 C569.ATpDP17191r2019-02-14 00:00:00w2019-02-14yBK  abcdefg  a11247  c11247d11247