Sat May 16 23:28:06 2020
<773ab1f1> <https://link.springer.com/search?facet-content-type=%22Book%22&package=mat-covid19_textbooks&%23038;facet-language=%22En%22&%23038;sortOrder=newestFirst&%23038;showAll=true> <— they made a buncha text books free during covid-19