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- [8] QUALIFICATION OF CONSUMER INDUSTRIAL-PRODUCTS - FOREWORD ANNALES DES MINES, 1979, 185 (05): : 9 - 10
- [9] QUALIFICATION OF INDUSTRIAL-PRODUCTS - MEANS AND OBJECTIVES ANNALES DES MINES, 1979, 185 (05): : 11 - 18
- [10] INDUSTRIAL-PRODUCTS FROM PINE NEEDLES HOLZFORSCHUNG UND HOLZVERWERTUNG, 1981, 33 (06): : 114 - 118