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- [3] PREDICTING SOIL DENSITY USING CONE PENETRATION RESISTANCE AND MOISTURE PROFILES TRANSACTIONS OF THE ASAE, 1987, 30 (05): : 1331 - 1336
- [5] ON THE RELATIONS BETWEEN FALL-CONE PENETRATION AND PORE NUMBER AT DIFFERENT SOIL-MOISTURE CONTENTS ARCHIV FUR ACKER UND PFLANZENBAU UND BODENKUNDE-ARCHIVES OF AGRONOMY AND SOIL SCIENCE, 1984, 28 (09): : 519 - 524
- [9] PREDICTING SOIL DENSITY USING CONE PENETRATION RESISTANCE AND MOISTURE PROFILES. Transactions of the American Society of Agricultural Engineers, 1987, 30 (05): : 1331 - 1336