J.  Cuguen, Couvet, D., Thompson, J. D., Tarayre, M., and Saumitou-Laprade, P., ?The spatial genetic structure of cytoplasmic (cpDNA) and nuclear (allozyme) markers within and among populations of the gynodioecious Thymus vulgaris (Labiatae) in southern France?, American Journal of Botany, vol. 84, no. 12, pp. 1675 - 1684, 1997.

J.  Cuguen, Couvet, D., Thompson, J. D., Tarayre, M., and Saumitou-Laprade, P., ?The spatial genetic structure of cytoplasmic (cpDNA) and nuclear (allozyme) markers within and among populations of the gynodioecious Thymus vulgaris (Labiatae) in southern France?, in American Journal of Botany, vol. 84, no. 12, 1997, pp. 1675 - 1684.