Burger, Alewyn P.; De Wet, J.P. (Johan); Frick, Marietjie; Van Cleemput, Nico; Zamfirescu, Carol T.
(Wiley, 2023)
In 1978 Thomassen asked whether planar hypohamiltonian oriented graphs exist. Infinite families of such graphs have since been described but for infinitely many it remained an open question whether planar hypohamiltonian ...
