Sphere orders

This publication has 8 references indexed in Scilit:

• A short proof that N 3 is not a circle containment order
  Order, 1988
• Interval orders and circle orders
  Order, 1988
• Degrees of freedom versus dimension for containment orders
  Order, 1988
• Circle orders, N-gon orders and the crossing number
  Order, 1988
• Space-time as a causal set
  Physical Review Letters, 1987
• Helly’s theorem and its relatives
  Published by American Mathematical Society (AMS) ,1963
• Partially Ordered Sets
  American Journal of Mathematics, 1941
• Mengen konvexer K rper, die einen gemeinsamen Punkt enthalten
  Mathematische Annalen, 1921