共 9 条
[1]
A HELICAL DESIGN FOR PLOUGH MOULDBOARDS
[J].
JOURNAL OF AGRICULTURAL ENGINEERING RESEARCH,
1967, 12 (03)
:178-&
[2]
KRUTTIKOW NP, 1955, THEORIE BERECHNUNG K
[3]
O'CALLAGHAN J. R., 1965, Journal of Agricultural Engineering Research, V10, P23, DOI 10.1016/0021-8634(65)90106-X
[4]
OCALLAGHAN JR, 1965, LANDTECHNISCHE FORSC, V15, P112
[5]
POESSE GJ, 1967, RISTERVORM PLOEGSNEL
[6]
SOHNE W, 1960, GRUNDL LANDTECHN, V12, P51
[7]
SOHNE W, 1962, GRUNDLAGEN LANDTECH, V15, P15
[8]
SOHNE W, 1959, GRUNDL LANDTECH, V11, P22
[9]
Tricomi F., 1948, ELLIPTISCHE FUNKTION