1) i presume your husband died intestate
2) on his demise your 2 children would also be his legal heirs having 17 %share each in property
3) you need their consent to sell the property
4) obtain letters of administration from court in the name of legal heirs
5) if your children do not want share they can execute consent affidavit relinquishing share in property in your name
6) apply for mutation of property in your name