Razvan A. Satnoianu, Isaac Sofair. More Triangle Inequalities: 10955. The American Mathematical Monthly, 111(1):67-69, 2004. [doi]
@article{SatnoianuS04, title = {More Triangle Inequalities: 10955}, author = {Razvan A. Satnoianu and Isaac Sofair}, year = {2004}, url = {http://www.jstor.org/stable/4145030}, researchr = {https://researchr.org/publication/SatnoianuS04}, cites = {0}, citedby = {0}, journal = {The American Mathematical Monthly}, volume = {111}, number = {1}, pages = {67-69}, }