@article{CM_1996__102_2_125_0,
     author = {Urbanowicz, Jerzy},
     title = {On diophantine equations involving sums of powers with quadratic characters as coefficients, {II}},
     journal = {Compositio Mathematica},
     pages = {125--140},
     publisher = {Kluwer Academic Publishers},
     volume = {102},
     number = {2},
     year = {1996},
     mrnumber = {1394522},
     zbl = {0944.11010},
     language = {en},
     url = {http://www.numdam.org/item/CM_1996__102_2_125_0/}
}