00307nam a2200109Ia 4500008004100000040003800041100001700079245003200096260003300128300001600161653002000177211217s9999    xx            000 0 und d  cJayakar Knowledge Resource Centre  aBak, Thor A. 0aVectors, tensors and groups  bW.A.BenjaminaNew Yorkc1967  aix, 129p p.  aVector analysis