@article{10_4153_CMB_1975_044_3,
     author = {Higgins, Rada},
     title = {On {Certain} {Problems} in the {Theory} of {Sequences}},
     journal = {Canadian mathematical bulletin},
     pages = {229--231},
     year = {1975},
     volume = {18},
     number = {2},
     doi = {10.4153/CMB-1975-044-3},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CMB-1975-044-3/}
}