Dramé, S. A. A., C. Khoule, and A. Ndiaye. “Linear Deformations of Closed Non-Singular 1-Forms into Even Contact and Engel Defining Forms”. Journal of the Tensor Society, Vol. 19, no. 01, June 2025, pp. 1-13, doi:10.56424/jts.v19i01.247.