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Books about Stvan:
Fine American Antiques Auction: Selections From the Collections of Mr/Mrs William Wamelink and Mr/Mrs Edward Stvan... by Garth's Auctions (Jan 1, 1976)
Wiki information Stvan:
Štvanice stadium was situated on Štvanice Island, Czech Republic and was ranked among the oldest stadiums in Prague. The stadium was in its heyday in the first half of the 20th Century, but has been in decline since 1961.