UNGER FELIX / r e d . / 534,953 ASSISTED Assisted circulation 2 / ed. by Felix Unger / with contributions by K. Affeld /et al./. — Berlin /etc./ :Springer Verl., 1979 — — 25 c m /Vol./ 2. - 1984. - XV,/I/, 430 s : i. wykr. ; 25 c m ISBN 3-540-13055-1 Springer-Veri, /etc./ ISBN 0-387-13055-1 Springer-Veri. New York/eta/