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Unit disk graph recognition is NP-hard
Breu, H.; Kirkpatrick, D.G.
Linear area upward drawings of AVL trees
Crescenzi, P.; Penna, P.; Piperno, A.
New results on drawing angle graphs
Algorithms for area-efficient orthogonal drawings
Papakostas, A.; Tollis, I.G.
Universal 3-dimensional visibility representations for graphs
Alt, H.; Godau, M.; Whitesides, S.
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