@article{singh_chakrabarti_bera_sony_2011,  title={An efficient C0 FE model for the analysis of composites and sandwich laminates with general layup},  volume={8},  ISSN={1679-7825},  url={https://doi.org/10.1590/S1679-78252011000200006},  DOI={10.1590/S1679-78252011000200006},  number={2},  journal={Latin American Journal of Solids and Structures},  publisher={Individual owner},  author={Singh, S.K. and Chakrabarti, A. and Bera, P. and Sony, J.S.D.},  year={2011},  month={Jun},  pages={197–212} }