ADB 49 1904: 156-9 ; NDB 5 1961: 632 f. ; Gicklhorn, Josef & Renée Gicklhorn: Im Kampf um den Amazonenstrom. Das Forscherschicksal des Pater Samuel Fritz (Prag: Noebe, 1943) ;
Further Places of Activity: Peru and Brazil (Belém do Pará).
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