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The power of this manageable method is presented by applying it to the above equations. Our approach provides first integrals in polynomial form with high accuracy. Exact analytical solutions are obtained through establishing first integrals. The present method is efficient and reliable, and it can be used as an alternative to establish new solutions of different types of fractional differential equations applied in mathematical physics.<\/jats:p>","DOI":"10.1155\/2015\/191545","type":"journal-article","created":{"date-parts":[[2015,3,2]],"date-time":"2015-03-02T21:01:27Z","timestamp":1425330087000},"page":"1-9","source":"Crossref","is-referenced-by-count":5,"title":["Feng\u2019s First Integral Method Applied to the ZKBBM and the Generalized Fisher Space-Time Fractional Equations"],"prefix":"10.1155","volume":"2015","author":[{"given":"Huitzilin","family":"Y\u00e9pez-Mart\u00ednez","sequence":"first","affiliation":[{"name":"Universidad Aut\u00f3noma de la Ciudad de M\u00e9xico, Prolongaci\u00f3n San Isidro 151, Colonia San Lorenzo Tezonco, Delegaci\u00f3n Iztapalapa, 09790 M\u00e9xico DF, Mexico"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ivan 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