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Books about Helmanis:
Zemmers, Kalnins, Helmanis: Dzive un darbi by Egons Darzins (1993)
Wiki information Helmanis:
Uvis Helmanis is a former Latvian professional basketball player who played power forward position. After retiring he became a coach, and is currently working as a head coach for BK Liepājas Lauvas.
Kristaps Helmanis was a Latvian vaccinologist and microbiologist. He discovered tuberculin simultaneously with Robert Koch and mallein together with Oto Kalniņš.