El-Mahy, W., Ahmed, M., Awad, M., Hayman, Z. (2009). 'Evolution of the Motion Around a Slowly Rotating Body', International Conference on Aerospace Sciences and Aviation Technology, 13(AEROSPACE SCIENCES & AVIATION TECHNOLOGY, ASAT- 13, May 26 – 28, 2009), pp. 1-10. doi: 10.21608/asat.2009.23480