IRC site

CRC Article = 27(4)
Note:
Article 27(4) of the CRC obligates States Parties to take all appropriate measures to secure the recovery of maintenance for the child from the parents or other persons having financial responsibility for the child, both within the State Party and from abroad, including accession to or conclusion of international instruments concerning recovery of maintenance from abroad. Existing international treaties include: the Hague Convention on the Law Applicable to Maintenance Obligations Towards Children (1956); the Hague Convention on the Recognition and Enforcement of Decisions Relating to Maintenance Obligations (1973); and the Inter-American Convention on Support Obligations (1989).

See also:
Illicit transfer and non-return   Maintenance obligations   Parental responsibilities