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Extraction of peat bitumens with various solvents , Chemical character of bitumens with regard to the organic group analysis

By R. Kadner, W. Fischer, G. Schlungbaum.
L. 1963 .
24, V с. 23 см.

By R. Kadner, W. Fischer, G. Schlungbaum.
L. 1963 .
30, V с. 23 см.

By W. Fischer, G. Schlungbaum, R. Kadner.
L. 1963 .
22, III с., 2 отд. л. табл. 22 см.

By W. Fischer, G. Schlungbaum, R. Kadner.
L. 1963 .
24, III с. 23 см.