Attached files
file | filename |
---|---|
EX-32.01 - EX-32.01 - NORTHERN STATES POWER CO /WI/ | nspwex3201q12021.htm |
EX-31.02 - EX-31.02 - NORTHERN STATES POWER CO /WI/ | nspwex3102q12021.htm |
EX-31.01 - EX-31.01 - NORTHERN STATES POWER CO /WI/ | nspwex3101q12021.htm |
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