An Australian fathered four children by his daughter over more than 30 years, after he began raping her daily at age 11, authorities say. Child-welfare advocates are asking for an investigation into social-services agencies because the children were all born with health problems in major Melbourne hospitals with no father listed. One of the children died from a severe developmental disorder shortly after birth. Shockingly, the woman alerted authorities three years ago, but because she refused to cooperate with police out of fear of her dad, nothing was done. In a striking similarity to Austria's Joseph Fritzl, who kept his daughter in a dungeon and fathered seven children with her, the Australian woman's mother claims she had no idea her husband was abusing her daughter, even though the three of them lived together with the surviving grandchildren until 2005.