Hudzik, H., Wu, C. y Ye, Y. (1994): «Packing Constant in Musielak-Orlicz Sequence Spaces Equipped with the Luxemburg Norm», Revista Matemática Complutense, 7(1), p. 13. doi: https://doi.org/10.5209/rev_REMA.1994.v7.n1.17758.