TY - JOUR AU - Bodaghifard, Mohamad Ali AU - Ahadi, Najmieh TI - Sulfamic acid: A green and efficient catalyst for synthesis of mono-, bis-, and spiro- perimidines JO - Iranian Journal of Catalysis VL - 6 IS - 4 SP - 377 EP - 380 PY - 2016 DO - ER -