Jon Mulkeen on Twitter: "Marita Koch: "Doping wasn't just an issue in the GDR; it was and is a worldwide problem, and by all means it should be fought against."" / Twitter
MARITA KOCH East German Athlete in athletics after she wonn 400m at European Championship in the Athena 1982 Stock Photo - Alamy
Olympic Games 1980 Moscow / Athletics Olympic champion over 400m Marita Koch (GDR) is happy, waves 28.07.1980 [automated translation] Stock Photo - Alamy
Marita Koch East Germany 400m European Editorial Stock Photo - Stock Image | Shutterstock Editorial
Marita Koch | Olympic hero, Female athletes, Track and field
Marita Koch: Can we believe her 400m world record is genuine? - BBC Sport
Marita Koch: Can we believe her 400m world record is genuine? - BBC Sport
Marita Koch et Marlies Gohr 1983 - Along with Flo Jo these two East German athletes had some of the most suspect World Rec… | Sportler, Sport frauen, Leichtathletik
Marita Koch: Greatest 400m runner unconquerable even after 36 years | Sunday Observer