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- [21] R-AND-D SPENDING VS NATIONAL PRODUCTIVITY INDUSTRIAL RESEARCH & DEVELOPMENT, 1983, 25 (04): : 187 - 187
- [28] R-AND-D NEEDS IN GEODETIC SURVEYING JOURNAL OF SURVEYING ENGINEERING-ASCE, 1984, 110 (01): : 34 - 38
- [29] 14 US AGBIOTECH FIRMS UP R-AND-D SPENDING 3.2-PERCENT BIO-TECHNOLOGY, 1995, 13 (08): : 732 - 733