what do you understand under polearms?
a pollaxe? a spear?
for the pollaxe, both fiore as talhoffer handle him but talhoffer has more techniques in it.also, "la jeu de l'hache" (the plays of the axe) is a 15th century burgundian book about fighting with the pollaxe
here 's a site where they list some talhoffer techniques http://www.schlachtschule.org/pollaxe/pollaxeinst.html
when you go to their links they list a lot of information.
the die schlachtschule yahoo group is a yahoogroup you can freely join and where they share a lot of information (for example a translated version of le jeu de l'hache in english.they are also USA based.
the owner of this group is currently working on a pollaxe book himself, which i intend to buy once it's out