Results in Mathematics
Results in Mathematics > 2006 > 49 > 3-4 > 237-263
Results in Mathematics > 2008 > 52 > 1-2 > 41-50
Results in Mathematics > 2009 > 55 > 3-4 > 231-247
Results in Mathematics > 2012 > 61 > 1-2 > 29-42
Results in Mathematics > 2016 > 69 > 1-2 > 23-47