@article{paperid:1080127, author = {محمد حیدری and محدثه رمضان زاده and اکبر هاشمی برزآبادی and Solaymani Fard, Omid}, title = {Solutions to fuzzy variational problems: necessary and sufficient conditions}, journal = {International Journal of Modelling, Identification and Control}, year = {2017}, volume = {28}, number = {2}, month = {January}, issn = {1746-6172}, pages = {187--198}, numpages = {11}, keywords = {fuzzy valued functions; fuzzy variational problems; fuzzy isoperimetric problems; necessary and sufficient conditions}, }