"stern rules" is correct and usable in written English.
You can use it to describe the rules that are strictly enforced, or that are regarded as severe. For example: "The school has a set of stern rules that must be followed by all students."
Asked if he could imagine Thomas regaining full organizational power, D'Antoni acknowledged the possibility, regardless of what anyone thinks or Stern rules.
In Brazil, until it relaxed the rules last year, some governors moved in and out of office like yo-yos.Only recently and rarely have these stern rules been modified.
Today, Mr. Stern rules an emerald empire of 28,156 acres that includes 980 playgrounds, 614 ball fields, 35 recreation centers and 14 miles of beaches, staffed by 2,121.
This is when we draft stern rules for a new school year, strictures like: no laptops in bedrooms during the week; homework before screen time; no electronics after 10 p.m.; no iTunes purchases without advance permission, not even that 99-cent Rihanna remix.
There was the store Brooklyn Without Limits ("w/ locations in Gay Town, White Harlem, and the Van Beardswick section of Brooklyn"); the episode about anti-terrorist paranoia ("If you suspect anything, do everything"); and Dennis Duffy as the subway hero, yelling "Baba Booey, Stern rules!" at a Bloomberg press conference.
Etruria was a harbinger of the dreaded factories of later years, with its stern rules about conduct and its pioneering system of clocking on, but in its day it was a model, with housing for workers, a school and a health insurance scheme, and the workforce stayed for years.
Mr King at the Bank of England found it impossible to stick to his stern rule about providing liquidity to the interbank market.
Jamal Perry, 16, and Andre Steinberg, 19, are in touch with their fathers, but it is clear that they were raised under their mother's stern rule.
Four months ago Spain seemed ready to accept the stern rule of Mr Aznar, with his Atlanticist foreign policy, traditional approach to social issues and unbending attitude towards Basque, Catalan and other nationalists.
Friendly old Canada, left for dead after nine years of stern rule under the divisive government of the Conservative prime minister Stephen Harper, has returned with a vengeance after voters overwhelmingly turned to a charismatic Liberal named Trudeau in a bid to recapture the glory days that characterized his father's long and memorable rule.
Without that endorsement, bishops in American dioceses cannot be compelled to follow sterner rules for punishing priests in the United States.
