00421nam a2200169Ia 450000500170000000800410001702000120005808200160007010000200008624500410010625000120014726000300015930000080018950500290019794200080022699900170023420241209164220.0241209s9999 xx 000 0 und d afca3099 a517.38/G66i aGolberg, Samuel 0aIntroduction to difference equations a1a. ed. aNew YorkbEd. Wileyc1958 a260 aLibro en idioma ingleĢs yLIB c19727d19727