Results in Mathematics
Results in Mathematics > 2013 > 63 > 1-2 > 1-13
Results in Mathematics > 2016 > 69 > 3-4 > 359-367
Results in Mathematics > 2016 > 70 > 3-4 > 457-473
Results in Mathematics > 2017 > 72 > 3 > 1073-1085
Results in Mathematics > 2017 > 72 > 3 > 1601-1612
Results in Mathematics > 2017 > 72 > 3 > 1613-1621