au.\*:("LOB F")
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DIE KAOLINLAGERSTAETTEN DER BUNDESREPUBLIK DEUTSCHLAND. (LES GISEMENTS DE KAOLIN DE LA R.F.A.).LIPPERT HJ; LOB F; MEISL S et al.1969; INT.GEOL.CONG.REPORT.OF.THE.23.SESSION-CZECHOSLOVAKIA-1968; 1969, VOL. 15, P. 85 A 105Miscellaneous
