312,872 MEMBRANES Membranes in dialysis : [the International Conference] 4-5 March 1990 Prague in association with XXth Czechoslovakian Congress on Nephrology / eds A[lbert] Valek et al.] :European Dialysis and Transplant Association, European Renal Association]. - [London] : Ipringer International, 1991. - [5], 87 s. : il., wykr. 28 cm (Nephrology Dialysis Transplantation ; vol. 6, suppl. 3