Total number of photos: 24092

Details for Boyan Penkov

Boyan Penkov, Ivor Owen Grattan-Guinness, Christoph J. Scriba, Martin Barner, Eberhard Knobloch
    • B. Penkov
    • I. O. Grattan-Guinness
    • C. J. Scriba
    • M. Barner
    • E. Knobloch
    • (1988)
 		Boyan Penkov
    • B. Penkov
    • (1988)

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