State v. Propotnik , 299 Minn. 56 ( 1974 )
State v. Gustafson , 298 Minn. 200 ( 1974 )
Beaman v. State , 301 Minn. 180 ( 1974 )
State v. Hopkins , 293 Minn. 522 ( 1972 )
Boykin v. Alabama , 89 S. Ct. 1709 ( 1969 )