000 00435nam a2200157Ia 4500
008 130223s9999 xx 000 0 und d
080 _a631.626.2.001.2
100 _aRijtema, P.E.
245 _aCalculation of non-parallelism of gamma access tubes, using soil sampling data
260 _aWageningen
260 _c1969
300 _a206-212 p.
440 _aNo. 67; Netherlands, Institute
901 _pS17072
942 _cB
_2udc
999 _c117234
_d117234