00370nam a2200145Ia 4500008004100000020001800041082001100059082001000070100001700080100001200097245006600109260001400175260002600189260000900215230118s9999||||xx |||||||||||||| ||und||  a0-07-099006-9  a515.35  bAYR/T  afrankbayres  bj.cault 0atheory and problems differential equations in si metric units  asingapore  bschaums otline series  c1981