Abel GJW, Springer F, Willmitzer L, Kossmann J. Cloning and functional analysis of a cDNA encoding a novel 139 kDa starch synthase from potato (Solanum tuberosum L.). The Plant Journal. 1996 Dec;10(6):981–91. doi: 10.1046/j.1365-313x.1996.10060981.x.