The campaign has received much attention because of the controversial methods used to promote free public transport: Planka.

His most controversial method attempts to lead autistic children to recognize and respond to their mother's voice.

Many other experts have argued that the same information or better could have been obtained by less controversial methods.

Another common and less controversial method of restricting debate is more frequently resorted to.

While this was considered a controversial method at the time, she succeeded.

His uncle's controversial methods were coarse in the extreme.

Breaking the Silence's most controversial method is anonymous soldier testimony.

One controversial method, mixed ability teaching, was widely adopted.

This is through controversial methods: the use of smoke and drugged wine.

However, the rankings have come into question because of the controversial method used to evaluate schools.