Equivalence classes Combinatorics on words 2 De Bruijn 2 Electron mass 2 Equivalence principle 2 Equivalence principles 2 Fermion mass 2 Finite alphabet 2 Finite size 2 Free parameters 2 Fundamental constants 2 Generalized gamma distribution 2 Graphic methods 2 Image retrieval 2 Infinite periodic sequence 2 Kullback Leibler divergence 2 Lexicographic order 2 Mass ratio 2 Milky ways 2 Necklaces 2 Phenomenological models 2 Positive integers 2 Protons 2 Retrieval performance 2 Rotation invariant 2 Statistical methods 2 Statistical modeling 2 Statistical models 2 Statistical tests 2 Statistical tests of finite size 2