Ahmad Hemami. A more general closed-form solution to the inverse kinematics of mechanical arms. Advanced Robotics, 2(4):315-325, 1987. [doi]
@article{Hemami87-0, title = {A more general closed-form solution to the inverse kinematics of mechanical arms}, author = {Ahmad Hemami}, year = {1987}, url = {https://www.wikidata.org/entity/Q58025736}, researchr = {https://researchr.org/publication/Hemami87-0}, cites = {0}, citedby = {0}, journal = {Advanced Robotics}, volume = {2}, number = {4}, pages = {315-325}, }