 [src: [https://scholarscompass.vcu.edu/cgi/viewcontent.cgi?article=8067&context=etd](https://scholarscompass.vcu.edu/cgi/viewcontent.cgi?article=8067&context=etd)]  [src: [https://arxiv.org/pdf/1810.12488.pdf](https://arxiv.org/pdf/1810.12488.pdf)]
