@article{JOLT_2022_32_3_a1, author = {B. Dali and C. Sayari}, title = {The {Cortex} of {Nilpotent} {Lie} {Algebras} of {Dimensions} {Less} or {Equal} to 7 and {Semi-Direct} {Product} of {Vector} {Groups:} {Nilpotent} {Case}}, journal = {Journal of Lie Theory}, pages = {643--670}, year = {2022}, volume = {32}, number = {3}, doi = {10.5802/jolt.1245}, zbl = {1518.17017}, url = {https://jolt.centre-mersenne.org/articles/10.5802/jolt.1245/} }