@article{10_4064_aa96_4_2,
     author = {Christian Friesen},
     title = {Bounds for frequencies of class groups of
real quadratic genus 1 function fields},
     journal = {Acta Arithmetica},
     pages = {313--331},
     publisher = {mathdoc},
     volume = {96},
     number = {4},
     year = {2000},
     doi = {10.4064/aa96-4-2},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/aa96-4-2/}
}