Smoothness of harmonic and analytic functions on the boundary points of a domain
1982 ◽
Vol 89
(1)
◽
pp. 262-289
◽
1989 ◽
Vol 11
(3-4)
◽
pp. 167-171
1950 ◽
Vol 68
(2)
◽
pp. 183-183
◽
1998 ◽
Vol 21
(4)
◽
pp. 625-636
◽