Mathematical Notes
Mathematical Notes > 2013 > 94 > 1-2 > 115-126
Mathematical Notes > 2013 > 94 > 3-4 > 532-546
Mathematical Notes > 2013 > 94 > 5-6 > 722-813
Mathematical Notes > 2014 > 95 > 1-2 > 286-289
Mathematical Notes > 2015 > 97 > 3-4 > 565-574
Mathematical Notes > 2015 > 97 > 3-4 > 423-430
Mathematical Notes > 2015 > 98 > 1-2 > 343-347
Mathematical Notes > 2015 > 98 > 1-2 > 138-157
Mathematical Notes > 2015 > 98 > 3-4 > 429-440
Mathematical Notes > 2015 > 98 > 5-6 > 798-804
Mathematical Notes > 2017 > 101 > 3-4 > 488-496
Mathematical Notes > 2017 > 101 > 3-4 > 645-659
Mathematical Notes > 2017 > 101 > 3-4 > 660-665