Machado, J. A. TenreiroGalhano, AlexandraTrujillo, Juan J.2014-02-062014-02-0620131311-04541314-2224http://hdl.handle.net/10400.22/3773During the last fifty years the area of Fractional Calculus verified a considerable progress. This paper analyzes and measures the evolution that occurred since 1966.engFractional calculusScience metricsScience metrics on fractional calculus development since 1966journal article10.2478/s13540-013-0030-y