Lau, E., & Krug, W. (1968). Equidensitometry;: Methods of two-dimensional photometry, principles and fields of application. London: The Focal Press.
Παραπομπή Chicago StyleLau, Ernst, and Wolfgang Krug. Equidensitometry;: Methods of Two-dimensional Photometry, Principles and Fields of Application. London: The Focal Press, 1968.
Παραπομπή MLALau, Ernst, and Wolfgang Krug. Equidensitometry;: Methods of Two-dimensional Photometry, Principles and Fields of Application. London: The Focal Press, 1968.
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