OGLE

[1994] [Search and Discovery] MACHO Searches Find Most Candidates in Unexpected Places ; Bertram Schwarzschild ; Physics Today 47 (jul 1994) p. 17 [lien]
[2006] [Search and Discovery] Gravitational Microlensing Reveals the Lightest Exoplanet Yet Found ; Bertram Schwarzschild ; Physics Today 59 (avr 2006) p. 22 [lien]