@inproceedings{SPP-2018-PC-25, title={Cloaking regions of a general four-lens paraxial cloak}, volume={36}, booktitle={Proceedings of the Samahang Pisika ng Pilipinas}, author={Revilla, Miguel Lao and Lorenzo, Joshua Cesar M. and Hermosa, Nathaniel}, year={2018}, pages={SPP-2018-PC-25}, url={https://proceedings.spp-online.org/article/view/SPP-2018-PC-25} }