Is a restriction on access to the law library an unconstitutional restriction on the right to self-representation?

Delgadillo argues that curtailing his access to the law library as described above was an unconstitutional restriction on his right to self-representation and requires his conviction be reversed. We disagree. To be sure, the state may not unreasonably hinder a pro per defendant's efforts to prepare his defense (Milton v. Morris (9th Cir. 1985) 767 F.2d 1443, 1446-1447), but we find no evidence of unreasonable hindrance in this case.