@book{UBHD-3503627, title={System no. 2568 - 2569}, publisher={Springer}, address={Berlin ; Heidelberg}, year={1987}, pages={XIX, 938 S.}, language={eng}, isbn={3-540-17304-8 and 0-387-17304-8 and 978-3-540-17304-5 and 978-0-387-17304-7}, library={UB [Signatur: UBN/VA 1060::S5:18,5 (18,5)]}, }