Costin, R. D. The Return Map for a Planar Vector Field with Nilpotent Linear Part: A Direct and Explicit Derivation. Wiley.
Chicago Style (17th ed.) CitationCostin, Rodica D. The Return Map for a Planar Vector Field with Nilpotent Linear Part: A Direct and Explicit Derivation. Wiley.
MLA (9th ed.) CitationCostin, Rodica D. The Return Map for a Planar Vector Field with Nilpotent Linear Part: A Direct and Explicit Derivation. Wiley.
Warning: These citations may not always be 100% accurate.