APA (7th ed.) Citation

Spurzem, R. (1997). AHA-GRAPE: The ultimate machine for SHP and NBODY ? Hipparcos and the nearby stars.

Chicago Style (17th ed.) Citation

Spurzem, Rainer. "AHA-GRAPE: The Ultimate Machine for SHP and NBODY ?" Hipparcos and the Nearby Stars 1997.

MLA (9th ed.) Citation

Spurzem, Rainer. "AHA-GRAPE: The Ultimate Machine for SHP and NBODY ?" Hipparcos and the Nearby Stars, 1997.

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