Article 143 — —(1) Judicial Declaration of Paternity.

Where, after applying the preceding Articles, the father of the child is not ascertained, a judicial declaration of paternity may be obtained under the following conditions; (a) in the case where the mother has been the victim of abduction or rape at the time of conception of the child; (b) in the case where, at the time of conception of the child, the mother has been the victim of seduction accompanied by abuse of authority, promise of marriage, or any other similar act of intentional deception; (c) in the case where there exist letters or other documents written by the claimed father which unequivocally prove paternity; (d) in the case where the claimed father and the mother of the child have lived together in continuous sexual relation, without having a legally recognized relation, in the period regarded by law as the period of pregnancy. (e) in the case where the person claimed to be the father of the child has participated in the maintenance, care and , education of the child in the capacity of a father.