RETRACTED ARTICLE: Tribological behavior of pongamia oil as a lubricant additive

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STATEMENT OF RETRACTION We, the Editors and Publishers of Energy Sources, Part A: Recovery, Utilization, and Environmental Effects, have retracted this article: Yashvir Singh, Rajnish Garg & Ajay Kumar (2016) Tribological behavior of pongamia oil as a lubricant additive, Energy Sources, Part A: Recovery, Utilization, and Environmental Effects, 38:16, 2406-2412, DOI: 10.1080/15567036.2015.1089341 This article has been retracted due to image duplication and manipulation. An investigation was conducted, and “worn surface image” panels in Figure 6 were found to be published in two other articles. What the images are said to represent varies by article and the authors have not been able to provide the original images. Thus, the conclusions of the present article cannot be verified. The two other articles include: The authors do not agree with the retraction. We have been informed in our decision-making by our policy on publishing ethics and integrity and the COPE guidelines on retractions. The retracted article will remain online to maintain the scholarly record, but it will be digitally watermarked on each page as “Retracted”.

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