1. Ito Y.; Bowman R.L.; Countercurrent chromatography: Liquid-liquid partition chromatography without solid support. Science 1970,167(3916),281-283
2. Ito Y.; Principle and instrumentation of countercurrent chromatographyCountercurrent Chromatography: Theory and Practice; Mandava, NB Ito, Y, Eds; Marcel Dekker: New York, USA, 1988,79-492
3. Conway W.D.; Countercurrent Chromatography: Apparatus, Theory and Applications 1989
4. Conway W.D.; Petroski R.J.; Modern Countercurrent chromatography, ACS Symposium Series 593, ACS, Washington DC, USA 1993
5. Foucault A.; Centrifugal Partition Chromatography, Chromatographic Science Series CPC Press New York, USA 1994