APA (7th ed.) Citation

Heiligers, J., Ceriotti, M., McInnes, C., & Biggs, J. (2012). Design of optimal transfers between North and South Pole-sitter orbits.

Chicago Style (17th ed.) Citation

Heiligers, J., M. Ceriotti, C.R McInnes, and J.D Biggs. Design of Optimal Transfers Between North and South Pole-sitter Orbits. 2012.

MLA (8th ed.) Citation

Heiligers, J., et al. Design of Optimal Transfers Between North and South Pole-sitter Orbits. 2012.

Warning: These citations may not always be 100% accurate.