{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"Projective vector algebra; an algebra of vectors independent of the axioms of congruence and of parallels","author_name":"Ludwik Silberstein","thumbnail_url":"https://www.ebooknetworking.net/books/B00/ARG/bigB00ARGVQWI.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-B00ARGVQWI.html\">Projective vector algebra; an algebra of vectors independent of the axioms of congruence and of parallels</a>","width":400,"height":300}