perform the duties of

References in classic literature ?
These men who perform the duties of my household would give their lives for me as cheerfully as they would for their country, should the occasion arise.
The Governor earlier appointed Jatu Lahiri, a Member of the Assembly to perform the duties of the Office of Speaker from the commencement of the first meeting of the Assembly today.
Contract notice: Open procedure for the identification of the contractor with whom to enter into the contract for the acquisition of goods and services used to perform the duties of the managing authority set up at the individual departments of the regional holders of development programs financed with eu funds in the programming period 2014-2020.
The procurement is for the acquisition of instrumental services to perform the duties of the managing authority set up at the individual departments holders of development programs co-financed with eu funds in the programming period 2014-2020.
It also offers professional salary replacement by paying the salary of the person employed to perform the duties of the business owner during total disability.
To satisfy the "condition of employment" requirement, the use of the property must be required for the employee to properly perform the duties of employment.
In their research of 27 visually impaired men and women employed in diverse occupations and using adaptive devices to perform the duties of their respective jobs, Liebman and Ryder (1987) report that all of their subjects stated that they could not work up to maximum potential without their adaptive devices.