TY  - SER
AU  - Sawaryn, S. J.
AU  - Jamieson, A. L.
AU  - Mcgregor, A. E.
TI  - Explicit Calculation of Expansion Factors  for  Colilsion Avoidance Between Two Coplanar Survey-Error Elilpses
KW  - Geometrical Model
KW  - Coplanar Survey-Error Elilpses
ER  -