@ARTICLE {BARKER:1999, title = {The potential of physical means for the manipulation of yam tuber dormancy}, author = {Barker, D. J. and Keatinge, J. and Asiedu, R. }, journal = {Tropical Science}, year = {1999}, volume = {39}, number = {4}, pages = {204--213}, issn = {0041-3291}, note = {RTB; Root and Tuber; Yam}, }