@article{10_4064_aa158_3_4,
     author = {Lilian Matthiesen},
     title = {Correlations of representation functions
 of binary quadratic forms},
     journal = {Acta Arithmetica},
     pages = {245--252},
     year = {2013},
     volume = {158},
     number = {3},
     doi = {10.4064/aa158-3-4},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/aa158-3-4/}
}