Source Publication (e.g., journal title)
This article discusses how Phil Davis, Life Sciences Bibliographer at Cornell University, found duplicate articles in Emerald/MCB University Press journals. According to Davis, he has found hundreds of examples of the same article published in more than one journal in at least 73 Emerald/MCB journals over 30 years. This article gives the details of his discovery and what he chose to do about it.
Tenopir, Carol, "Duplication is Ubiquitous" (2005). School of Information Sciences -- Faculty Publications and Other Works.