Croft H. T.
Unsolved problems in geometry - Америк Springer-Verlag 1991 - 199
0387975063 3000 3540975063 3000
mathematics geometry convexity polygons combinatorial geometry general geometric problems
Unsolved problems in geometry - Америк Springer-Verlag 1991 - 199
0387975063 3000 3540975063 3000
mathematics geometry convexity polygons combinatorial geometry general geometric problems