Links
[1] https://www.google.com/url?q=https%3A//drive.google.com/open%3Fid%3D1J3XE4juUjQT1Z4vUqGyncQEioIuV93yK&sa=D&ust=1568552691738000&usg=AFQjCNH13jUMB5f22L9aQut7-9dJyoJA9A
[2] https://www.google.com/url?q=https%3A//drive.google.com/open%3Fid%3D1ep1FGcc8Bei5n46ayRHlWt_q4fMhvQ9I&sa=D&ust=1568552691738000&usg=AFQjCNHtRfz_x8GnNDzfb5VIgS7cj79rfw
[3] https://snfguide.stanford.edu/snf/project-type/e241
[4] https://snfguide.stanford.edu/guide/materials/iii-v-materials