Nilpotent families of endomorphisms of (P(V)+,∪)
Journal of Combinatorial Theory Series B
On the oriented chromatic number of grids
Information Processing Letters
Homomorphisms from sparse graphs with large girth
Journal of Combinatorial Theory Series B
On the oriented chromatic number of Halin graphs
Information Processing Letters
Oriented vertex and arc colorings of outerplanar graphs
Information Processing Letters
Oriented colorings of partial 2-trees
Information Processing Letters
On the oriented chromatic number of Halin graphs
Information Processing Letters
On r-acyclic edge colorings of planar graphs
Discrete Applied Mathematics
L(2,1) -labeling of oriented planar graphs
Discrete Applied Mathematics
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