stands for Digital Object Identifier
and is the unique identifier for objects on the internet. It can be used to create persistent link and to cite articles.
Using DOI as a persistent link
To create a persistent link, add「http://dx.doi.org/」
before a DOI.
For instance, if the DOI of an article is 10.5297/ser.1201.002 , you can link persistently to the article by entering the following link in your browser: http://dx.doi.org/ 10.5297/ser.1201.002 。
The DOI link will always direct you to the most updated article page no matter how the publisher changes the document's position, avoiding errors when engaging in important research.
Cite a document with DOI
When citing references, you should also cite the DOI if the article has one. If your citation guideline does not include DOIs, you may cite the DOI link.
DOIs allow accurate citations, improve academic contents connections, and allow users to gain better experience across different platforms. Currently, there are more than 70 million DOIs registered for academic contents. If you want to understand more about DOI, please visit airiti DOI Registration （ doi.airiti.com ） 。
-  Teresa Rauckyte, Douglas J. Hargreaves and Zenon Pawlak, “Determination of heavy metals and volatile aromatic compounds in used engine oils and sludges”, Fuel, Vol. 85, No. 4, pp.481-485, March, 2006.
-  Avi Ostfeld, “IPCLASS - an interactive program for calibrating activated sludge systems”, Environmental Modeling and Software, Vol. 17, No. 8, pp. 703-719, Dec., 2002.
-  Gregor D. Zupancic, Natasa Uranjek-Zevart and Milenko Ros, “Full-scale anaerobic co-digestion of organic waste and municipal sludge”, Biomass and Bioenergy, Vol. 32, No. 2, pp. 162-179, Feb, 2008.
-  V.A. Doshi, H.B. Vuthaluru and T. Bastow, “Investigations into the control of odour and viscosity of biomass oil derived from pyrolysis of sewage sludge”, Fuel Processing Technology, Vol. 86, No. 8, pp. 885-897, May,
-  G.T. Seo, T.S. Lee, B.H. Moon, K.S. Choi and H.D. Lee, “Membrane separation activated sludge for residual organic removal in oil wastewater”, Water Science and Technology, Vol. 36, No. 12, pp. 275-282, 1997.
The cart has had several articles, so do you want to clear it, or add together to the cart?