ニューポール 28
↑ Cheesman 1960, p. 94.
↑ "Nieuport 28C-1." nasm.si.edu. Retrieved: 30 August 2009.
↑ Cheesman 1960, p. 106.
↑ Dorr and Donald 1990, pp. 16–17.
↑ Treadwell 2000
↑ Cheesman 1960, p. 98.
↑ van Leeuwen, Marcel. Nieuport 28 zap16.com, 30 December 2008. Retrieved: 30 August 2009.