==External links==* Dr. PARASKEVOPOULOS, John Stefanos===Obituaries===* JRASC 45 (1951) 126 (one paragraph)* MNRAS 112 (1952) 277* "Nature" 167 (1951) 753* Obs 71 (1951) 88 (one line)* PASP 63 (1951) 212 (one paragraph)* "Sky and Telescope" 10 (1951) 169
277* "Nature" 167 (1951) 753* Obs 71 (1951) 88 (one line)* PASP 63 (1951) стр 212 (один параграф)* "Sky and Telescope" 10 (1951) стр 169