共 13 条
[1]
FIELD PERFORMANCE OF TRACTOR DRAUGHT CONTROL SYSTEMS
[J].
JOURNAL OF AGRICULTURAL ENGINEERING RESEARCH,
1967, 12 (03)
:205-&
[2]
THEORY FOR DYNAMIC BEHAVIOR OF MOULDBOARD PLOUGHS DURING PENETRATION
[J].
JOURNAL OF AGRICULTURAL ENGINEERING RESEARCH,
1976, 21 (03)
:313-323
[3]
AUTOMATIC CONTROL OF TRACTOR MOUNTED IMPLEMENTS - AN IMPLEMENT TRANSFER FUNCTION ANALYSER
[J].
JOURNAL OF AGRICULTURAL ENGINEERING RESEARCH,
1969, 14 (02)
:117-&
[4]
COWELL PA, 1969, THESIS U NEWCASTLE
[5]
COWELL PA, 1970, Patent No. 1314672
[6]
COWELL PA, 1966, FARM MECH, V18, P28
[7]
COWELL PA, 1970, OCT C AGR TRACT ALL
[8]
CROLLA DA, 1974, NIAE591410 NOT
[9]
INVESTIGATION OF POTENTIAL FOR IMPROVEMENT OF TRACTOR DRAFT CONTROLS
[J].
JOURNAL OF AGRICULTURAL ENGINEERING RESEARCH,
1974, 19 (02)
:147-165
[10]
FERGUSON HG, 1925, Patent No. 253566