Körpinar, T. .; Demirkol, R. C. . Curvature and Torsion Dependent Energy of Elastica and Nonelastica for a Lightlike Curve in the Minkowski Space. Ukr. Mat. Zhurn. 2020, 72 (8), 1095-1105. https://doi.org/10.37863/umzh.v72i8.847.