References
- Herbert E. Merritt, 'Hydraulic Control Systems,' John Wiley & Sons., 1967
- John Watton, 'Pluid Power Systems,' Prentice Hall, 1989
- Kawasaki, 'BNB50B Service Manual' 1990
- Blackbum J. E., Reethof G. & Shearer J. L., 'Fluid Power Control,' M. I. T Press., 1960
- Kojima, E., 'Counter Balnce Valve를 포함한 유압회로의 안정성,' 유압과공기압, Vol. 8, No. 2, 1977, P56-65