Results in Mathematics
Results in Mathematics > 2009 > 54 > 3-4 > 329-340
Results in Mathematics > 2009 > 56 > 1-4 > 141-164
Results in Mathematics > 2011 > 59 > 1-2 > 173-183
Results in Mathematics > 2011 > 59 > 3-4 > 563-576
Results in Mathematics > 2016 > 70 > 1-2 > 249-256
Results in Mathematics > 2017 > 72 > 1-2 > 181-192