00385nam a2200133Ia 4500020001500000082002500015100001900040245005800059260003400117300001600151490007400167500000500241700000500246  a3540053263  a330.0151573bD799.CF  aDrygas, Hilmar  aCoordinate-free approach to Gauss Markov estimationb  aBerlinbSpringer-Verlagc1970  aviii, 113p.  aLecture notes in Operations Research and Mathematical systems, no. 40  a  a