@book{UBHD-1989128, publisher={Veda Vyd. Slov. Akad. Vied}, address={Bratislava}, year={1991}, pages={218, 71 S.}, language={slo and fre}, isbn={80-224-0403-9 and 978-80-224-0403-7}, library={UB [Signatur: 92 A 5108::3 (1)]}, }