[Unverzagt, Das Hotel Balzer!], pamphlet, 2007-06-03/2007-07-15; (https://texashistory.unt.edu/ark:/67531/metadc1705355/m1/1/: accessed July 16, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .
[Unverzagt, Das Hotel Balzer!], pamphlet, 2007-06-03/2007-07-15; (https://texashistory.unt.edu/ark:/67531/metadc1705355/m1/1/: accessed July 16, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .