On 2-cell embeddings of graphs with minimum numbers of regions
Ladislav Nebeský (1985)
Czechoslovak Mathematical Journal
Similarity:
Ladislav Nebeský (1985)
Czechoslovak Mathematical Journal
Similarity:
Ladislav Nebeský (1981)
Czechoslovak Mathematical Journal
Similarity:
Ladislav Nebeský (1985)
Czechoslovak Mathematical Journal
Similarity: