Question: what is the largest university press in the world that published Oxford Companions?
Context: Oxford Companions is a book series published by Oxford University Press, providing general knowledge within a specific area.  The first book published in the series was "The Oxford Companion to English Literature" (1932), compiled by the retired diplomat Sir Paul Harvey. Prof. Hoon Phun Lee has held the Sir John Latham Chair of Law at Monash University since 1995 and is currently the Deputy Dean of the Faculty of Law.  He is also the Vice-Chairman of the Australian Press Council.  Prof. Lee is the author of ‘Constitutional Conflicts in Contemporary Malaysia’, (Oxford University Press, 1995) and the co-author of ‘The Australian Judiciary’ (Cambridge University Press, 2001) and ‘Australian Federal Constitutional Law: Commentary and Materials’ (2nd ed, Lawbook Co, 2007).  He is the co-editor of, inter alia, two volumes of essays on ‘The Constitution of Malaysia’ (Oxford University Press, 1978 and 1986), ‘Australian Constitutional Landmarks’ (Cambridge University Press, 2003), and ‘Australian Administrative Law: Fundamentals, Principles and Doctrines’ (Cambridge University Press, 2007).  Prof. Lee was also formerly Editor of the Monash University Law Review. University Press of Southern Denmark (Danish: "Syddansk Universitetsforlag" ) is Denmark's largest university press and was founded in 1966 as "Odense University Press" ("Odense Universitetsforlag").  The press publishes books from the world of science in the broadest sense of the word.  Its authors are mainly academics from the University of Southern Denmark and from Denmark's other centres of higher education.  The University Press of Southern Denmark also publishes a wide range of textbooks and teaching materials, as well as periodicals. The Oxford Companion to Music is a music reference book in the series of Oxford Companions produced by the Oxford University Press.  It was originally conceived and written by Percy Scholes and published in 1938.  Since then, it has undergone two distinct rewritings: one by Denis Arnold, in 1983, and the latest edition by Alison Latham in 2002.  It is "arguably the most successful book on music ever produced" (Wright, p. 99). The Oxford Companion to Wine (OCW) is a book in the series of Oxford Companions published by Oxford University Press.  The book provides an alphabetically arranged reference to wine, compiled and edited by Jancis Robinson, with contributions by several wine writers including Hugh Johnson, Michael Broadbent, and James Halliday, and experts such as viticulturist Richard Smart and oenologist Pascal Ribéreau-Gayon. Oxford University Press (OUP) is the largest university press in the world, and the second oldest after Cambridge University Press.  It is a department of the University of Oxford and is governed by a group of 15 academics appointed by the vice-chancellor known as the delegates of the press.  They are headed by the secretary to the delegates, who serves as OUP's chief executive and as its major representative on other university bodies.  Oxford University has used a similar system to oversee OUP since the 17th century. Lehigh University Press is the publishing house of Lehigh University.  Lehigh's university press was a member of the Associated University Presses consortium; other members included Bucknell University Press, University of Delaware Press, Susquehanna University Press and Fairleigh Dickinson University Press.  When Associated University Presses ceased most new publishing in 2010, a new distribution agreement between Lehigh University Press, Bucknell University Press, University of Delaware Press, and Fairleigh Dickinson University Press was struck with Rowman & Littlefield. The Oxford Companion to American Literature by James D. Hart is one of the Oxford Companions series published by the Oxford University Press, Oxford and New York.  "The Concise Oxford Companion to American Literature", by James D. Hart (an abridged version of the 5th ed., 1983) was published in 1986. The Oxford Companion to Beer, abbreviated OCB, is a book in the series of Oxford Companions published by Oxford University Press.  The book provides an alphabetically arranged reference to beer, compiled and edited by Garrett Oliver with a foreword by U.S. chef Tom Colicchio.  Published in 2011, the work draws on 166 contributors from 24 countries to amass over 1,100 entries on beer. The Oxford Companion to Classical Literature is a book in the series of Oxford Companions produced by Oxford University Press.  It is compiled and edited by Sir Paul Harvey, Fellow of St Anne's College, Oxford and lecturer in Classical Languages at the University of Oxford.
Answer: Oxford University Press