On the self-perimeter of quadrangles for gauges
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- Martini, H. & Shcherba, A. Beitr Algebra Geom (2011) 52: 191. doi:10.1007/s13366-011-0018-x
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We give a lower bound on the self-perimeter of unit circles of convex distance functions (gauges) that have the shapes of quadrangles.