Leonhard Euler [portrét]
Teorie grafů, 1736–1963, GDML_Books, (1997), p. 104 / Harvested from
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@inbook{400874,
     title = {Leonhard Euler [portr\'et]},
     booktitle = {Teorie graf\r u, 1736--1963},
     series = {GDML\_Books},
     publisher = {Prometheus},
     address = {Praha},
     year = {1997},
     pages = {104-104},
     url = {http://dml.mathdoc.fr/item/400874}
}

 (éd.). Leonhard Euler [portrét], dans Teorie grafů, 1736–1963, GDML_Books,  (1997), p. 104. http://gdmltest.u-ga.fr/item/400874/