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Applied Mathematics and Computation > 2015 > 265 > Complete > 807-818
Mathematical Methods in the Applied Sciences > 47 > 6 > 5266 - 5285
Mathematical Methods in the Applied Sciences > 47 > 6 > 4932 - 4969
Mathematical Methods in the Applied Sciences > 47 > 4 > 2472 - 2499
Mathematische Nachrichten > 297 > 1 > 378 - 413
Mathematische Nachrichten > 297 > 1 > 144 - 164
Mathematische Nachrichten > 296 > 12 > 5703 - 5709
Mathematical Methods in the Applied Sciences > 46 > 16 > 16840 - 16856
Mathematical Methods in the Applied Sciences > 46 > 14 > 15305 - 15340
Mathematical Methods in the Applied Sciences > 46 > 14 > 14794 - 14813
Mathematische Nachrichten > 296 > 6 > 2395 - 2403
Mathematical Methods in the Applied Sciences > 46 > 6 > 6705 - 6721
Studies in Applied Mathematics > 150 > 2 > 448 - 456
Mathematical Methods in the Applied Sciences > 46 > 2 > 2602 - 2635
Mathematical Methods in the Applied Sciences > 46 > 2 > 1667 - 1686
Mathematical Methods in the Applied Sciences > 45 > 17 > 11067 - 11078
Mathematical Methods in the Applied Sciences > 45 > 17 > 11079 - 11103
Demonstratio Mathematica > 2022 > Vol. 55, nr 1 > 737--751
Studies in Applied Mathematics > 149 > 3 > 798 - 814
Demonstratio Mathematica > 2022 > Vol. 55, nr 1 > 553--573