Gardner, Helen; De la Croix, Horst; Tansey, Richard G (1975). »The Renaissance in Northern Europe«. Art Through the Ages (6th izd.). New York: Harcourt Brace Jovanovich. str. 555. ISBN0-15-503753-6.
Gardner, Helen; De la Croix, Horst; Tansey, Richard G (1975). »The Renaissance in Northern Europe«. Art Through the Ages (6th izd.). New York: Harcourt Brace Jovanovich. str. 555–556. ISBN0-15-503753-6.
Russell, Francis (1967). The World of Dürer. Time Life Books, Time Inc. str. 9.
Gardner, Helen; De la Croix, Horst; Tansey, Richard G (1975). »The Renaissance in Northern Europe«. Art Through the Ages (6th izd.). New York: Harcourt Brace Jovanovich. str. 557. ISBN0-15-503753-6.