books.google.com - The influence of Ramanujan on number theory is renowned in mathematics. His papers, problems and letters have spawned a remarkable number of later results by many different mathematicians. Here, his 37 published papers, most of his first two and last letters to Hardy, the famous 58 problems submitted...http://books.google.com/books/about/Collected_Papers_of_Srinivasa_Ramanujan.html?id=oSioAM4wORMC&utm_source=gb-gplus-shareCollected Papers of Srinivasa Ramanujan