Author

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G. L. Groeneveld
147 articles by this author
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Article
 01-05-1980
 Unique: 889 | Total: 1440  | Access Period:
 191-197
Article
 01-11-1978
 Unique: 770 | Total: 1202  | Access Period:
 549-550
Article
 01-06-1977
 Unique: 747 | Total: 1122  | Access Period:
 297-298
Article
 01-12-1976
 Unique: 766 | Total: 1233  | Access Period:
 643-647
Article
 01-04-1973
 Unique: 790 | Total: 1203  | Access Period:
 106-119
Article
 01-02-1973
 Unique: 869 | Total: 1330  | Access Period:
 48-52
Article
 01-10-1970
 Unique: 858 | Total: 1369  | Access Period:
 362-370
Article
 01-09-1967
 Unique: 940 | Total: 1463  | Access Period:
 383-391
Article
 01-09-1961
 Unique: 819 | Total: 1312  | Access Period:
 303-306
Article
 01-03-1961
 Unique: 1089 | Total: 2127  | Access Period:
 109-121

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