Doctor of Philosophy by publication
A Doctor of Philosophy by publication (also known as a Ph.D. by Published Work, PhD by portfolio or Ph.D. under Special Regulation; also a thesis by publication, a thesis with publications, a publication-based thesis, an articles-based thesis, a manuscript-style dissertation, a compilation thesis and a journal format thesis) is a manner of awarding a Ph.D. degree offered by some universities in which a series of articles usually with a common theme are published in scholarly, peer-reviewed journals to meet the requirements for the degree, in lieu of presentation of a final dissertation. It is a type of thesis by published works, a practice originating in Germany in the 19th century. Many PhD by Publication programs require the submission of a formal thesis and a viva voce.