Ludwig Ritter von Köchel since undergone revisions. Mozart's works are often referred to by their K-numbers ("cf." opus number); for example, the "Jupiter" symphony, "Symphony No. 41" K. 551. Moreover, Köchel arranged Mozart's works into twenty-four categories, which were used by Breitkopf & Härtel when they published the first complete edition of Mozart's works from 1877 to 1910, a venture partly funded by Köchel. He also catalogued the works of Johann Fux. Ludwig Ritter von Köchel Ludwig Alois Friedrich Ritter von Köchel (; 14 January 1800 – 3 June 1877) was an Austrian musicologist, writer, composer, botanist and publisher. He is best known for
A Catalogue of Books Printed in the Fifteenth Century now in the Bodleian Library 1992 to 1999, Jensen headed the cataloguing team; he was succeeded by Alan Coates who headed the project from 2000 to its completion, during which time Jensen served as a consultant. Bod-inc. was published in the 400th anniversary year of the publication of the first catalogue of the Bodleian Library in 1605. The aims of Bod-inc. are summarized in the catalogue's introduction: Bod-inc. is divided into six volumes: A Catalogue of Books Printed in the Fifteenth Century now in the Bodleian Library A Catalogue of Books Printed in the Fifteenth Century now in the Bodleian Library (cited as Bod-inc.) is