A finite presentation for the hyperelliptic mapping class group of a   nonorientable surface
  We obtain a simple presentation of the hyperelliptic mapping class group $M^h(N)$ of a nonorientable surface N. As an application we compute the first homology group of $M^h(N)$ with coefficients in $H_1(N;Z)$. 
Michal Stukow
math.GT