@article{10_4064_aa146_3_3,
     author = {Jean-Marie De Koninck and Imre K\'atai},
     title = {Exponential sums involving the largest prime factor function},
     journal = {Acta Arithmetica},
     pages = {233--245},
     publisher = {mathdoc},
     volume = {146},
     number = {3},
     year = {2011},
     doi = {10.4064/aa146-3-3},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/aa146-3-3/}
}