Citation Hunt

The Wikipedia snippet below is not backed by a reliable source. Can you find one?

Click I got this! to go to Wikipedia and fix the snippet, or Next! to see another one. Good luck!

In page Nikolina Shtereva:

"

She was born in Sofia, and represented the clubs CSKA and Septemvrisko Zname during her career.[1] In the 1970s and 1980s she was a prolific competitor at the European Indoor Championships. She finished sixth at the 1975 European Indoor Championships, clocking in only 2:20.3 seconds,[2] but then won the gold medal at the 1976 European Indoor Championships. She edged out countrywoman Lilyana Tomova with 0.4 seconds, and Bulgaria almost managed a gold-silver-bronze constellation, but Ivanka Bonova lost the bronze medal to Gisela Klein.[3] She won another gold medal at the 1979 European Indoor Championships, 0.3 seconds ahead of Anita Weiß,[4] and finished sixth at the 1982 European Indoor Championships.[5] She also won the 800 metres event at the 1979 IAAF World Cup.[6]