1. FAO, The state of the world fisheries and aquaculture. Opportunities and challenges. In: Fisheries and aquaculture topics. Rome: Food and Agriculture Organization of United Nations, 2014.
2. T. Olafsen, R. Richardsen, R. Nystøl, G. Strandheim, J.P. Kosmo, Analysis of marine by-products 2013. English summary. Trondheim: SINTEF report nr A26097, 2013.
3. Salmon By-product Proteins. FAO Fisheries Circular No 1027;Ramírez,2007
4. Enhancing the functionality of food proteins by enzymatic modification;Panyam;Trends Food Sci. Technol.,1996
5. Fish meal and fish oil—not only by-products;Schmidtsdorff,1995