TY  - BOOK
AU  - James M. Longuski, Felix R. Hoots, George E. Pollock IV
TI  - Introduction to Orbital Perturbations
SN  - 9783030897581
PB  - Springer
UR  - https://link.springer.com/openurl?genre=book&isbn=978-3-030-89758-1
ER  -