[3] He won a gold medal with the Lithuania national basketball team during EuroBasket 1939.

[6] After graduating from the Kaunas War School, he studied law at the Vytautas Magnus University.

[7] On 15–22 April 1945, while World War II was still ongoing, the Soviet Union organized the 6th tournament of eight cities in Kaunas.

[9] After the tournament, several Lithuanian basketball players, including Šliūpas, Vincas Sercevičius, Stasys Šačkus, Vilius Variakojis, were arrested and deported to Gulag camps.

[9] Šliūpas was arrested on 16 June 1945 and was imprisoned in a Dalstroy camp in the Magadan Oblast.