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SAE technical paper series, Volume 951818.
A computer simulation of the soil reaction force was very helpful to develop the new rotary tilling system of a walking tractor which uses coaxial simultaneously counterrotating blades to stabilize... 
Design Engineering and Styling | Spark ignition engines | Agricultural vehicles and equipment
eJournal
SAE technical paper series, Volume 2004-32-0089.
A computer simulation of tilling force has been conducted for a compact walking tractor equipped with rear driving wheels and a front rotary shaft to estimate the effect of tilling force on behavior... 
Computer simulation | Two stroke engines | Agricultural vehicles and equipment | Emissions
eJournal
2009, Oxford studies in Byzantium, ISBN 9780199565283, xxvii, 326
This work examines the mechanisms of cultivation of the three major crops of the ‘Mediterranean triad’ (grain, wine, and olive oil) during the 4th through 7th... 
Economic aspects | Middle East History | Historic agricultural landscapes | Agriculture | History | Mediterranean Region History | classical history | Wine | Specialization | Islamic Conquest | Grain | Mediterranean Triad | Heavy Bulk Goods | Olive Oil | Subsistence
Book
Journal Article
Journal Article
Journal Article
BMC plant biology, ISSN 1471-2229, 2012, Volume 12, Issue 1, pp. 69 - 69
Journal Article
Plant Physiology, ISSN 0032-0889, 1/2009, Volume 149, Issue 1, pp. 158 - 164
Journal Article
The Plant Journal, ISSN 0960-7412, 02/2006, Volume 45, Issue 4, pp. 684 - 694
Journal Article