@article{ashkenazi m2012and,
  title={Clinical and Radiographic Outcomes Of Pulpotomized Primary Molars Treated with White or Gray Mineral Trioxide Aggregate And Ferric Sulfate –Long Term Follow-Up},
  author={frenkel g,kaufman a,ashkenazi m},
  journal={Journal of Clinical Pediatric Dentistry},
  volume={37},
  number={2},
  pages={137--142},
  doi = {10.17796/jcpd.37.2.j3h27p624u163868},
  year={2012}
}