Differ. Uravn., 1968 Volume 4, Number 2,Pages 347–365(Mi de299)
On the smoothness of thermal potentials. V. Thermal potentials $U,\,V$ and $W$ on surfaces of type $Ë^{m+1,\alpha,\alpha/2}_{2m+1,1,(1+\alpha)/2}$ and $Ë^{m+1,1,(1+\alpha)/2}_{2m+3,\alpha,\alpha/2}$