  The gauge Brezis-Browder Principle in Turinici [Bull. Acad. Pol. Sci.
(Math.), 30 (1982), 161-166] is obtainable from the Principle of Dependent
Choices (DC) and implies Ekeland's Variational Principle (EVP); hence, it is
equivalent with both (DC) and (EVP). This is also true for the gauge
variational principle deductible from it, including the one in Bae, Cho, and
Kim [Bull. Korean Math. Soc. 48 (2011), 1023-1032].
