au.\*:("VISHNJAKOV AP")
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ZONAL PAPER ELECTROPHORESIS AND HUMIC ACID FRACTIONAL COMPOSITION OF SOME SOILS.VESELKINA RV; VISHNJAKOV AP; SEMENOV VA et al.1969; POCHVOVEDENIE; SUN; 1969(4), NUM. 0004, P. 74 A 80Miscellaneous