Derpsch, R. and Moriya, K. (1998) Historical review of no-tillage cultivation of crops. Proceedings First JIRCAS Seminar on soybean research, Foz do Iguaçu, Brazil, JIRCAS Working Report, 13, 1-18.
 Fabrizzi, K.P., Garcia, F.O., Costa, J.L. and Picone, L.I.(2005) Soil water dynamics, physical properties and corn and wheat responses to minimum and no-tillage systems in the southern Pampas of Argentina. Soil and Tillage Research, 81, 57-69. doi:10.1016/j.still.2004.05.001
 Feiza, V., Deveikyte, I. and Simanskaite, D. (2005) Soil physical and agrochemical properties changes, weediness and yield of crops in longterm tillage experiment in Lithuania. Scientific publication, 48, 96-100.
 Jitareanu, G., Ailincai, C. and Bucur, D. (2006) Influence of Tillage Systems on Soil Phsical and Chemical Caracteristics and Yield in Soybean and Maize Grown in the Moldavian Plain (North–Eastern Romania). In Soil Management for Sustainability, IUSS, Catena Verlag, Germany. 370-379,
 Marin, D. I., Mihalache, M., Ciontu, C., Bolohan, C.and Ilie, L. (2011) Influence of soil tillage of pea, wheat and maize crop in the Moara Domneasca-Ilfov area. 5th International Symposium Soil Minimum Tillage System, Ed. Risoprint Cluj-Napoca. 111-118.
 Riley, H. C. F., Bleken, M. A, Abrahamsen, S., Bergjord, A. K. and Bakken, A. K. (2005) Effects of alternative tillage systems on soil quality and yield of spring cereals on silty clay loam and sandy loam soils in the cool, wet climate of central Norway. Soil and Tillage Research, 80, 79-93. doi:10.1016/j.still.2004.03.005
 Rusu, T., Gus, P., Bogdan, I., Moraru, P.I., Pop, A.I., Clapa, D., Marin, D.I., Oroian, I. and Pop, L.I. (2009) Implications of Minimum Tillage Systems on Sustainability of Agricultural Production and Soil Conservation. Journal of Food, Agriculture & Environment, 7, 335-338.
 Raja, R. K., Vara Prasad, P. V. and Kakani, V. G. (2005) Crop response to elevated carbon dioxide and interactions with temperature: Cotton. Journal of Crop Improvment, 13, 157-161. doi:10.1300/J411v13n01_08
 Reicosky, D.C. (2006) Carbon is the “C” that starts “C”onservation. Soil Scientist, USDA-Agricultural Research Service, North Central Soil Conservation, http://waswc.ait.ac.th/index.html.
 Turcu, V.E., Jones, S.B. and Or, D. (2005) Continuous soil carbon dioxide and oxygen measurements and estimation of gradient-based gaseous flux. Vadose Zone Journal, 4, 1161-1169. doi:10.2136/vzj2004.0164
 Ulrich, S., Hofmann, B., Tischer, S. and Christen, O. (2006) Influence of Tillage on Soil Quality in a Long Term Trial in Germany. In Soil Management for Sustainability, IUSS, Catena Verlag, Germany. 110-116.