I. A. Walter

Issues, requirements and challenges in selecting and specifying a standardized ET equation.

Derrel L. Martin, Richard G. Allen, Richard L. Snyder, 2000 .

Comparison of Reference Evapotranspiration Calculations as Part of the ASCE Standardization Effort

Richard G. Allen, Ronald L. Elliott, I. A. Walter, 2003 .

The ASCE standardized reference evapotranspiration equation

I. A. Walter, R. Allen, T. Howell, 2005 .

A recommendation on standardized surface resistance for hourly calculation of reference ETo by the FAO56 Penman-Monteith method

L. S. Pereira, James L. Wright, I. A. Walter, 2006 .

ASCE's standardized reference evapotranspiration equation.

Marvin E. Jensen, Terry A. Howell, Derrel L. Martin, 2001 .

Lysimeters for Evapotranspiration and Environmental Measurements

Marvin E. Jensen, Terry A. Howell, Richard G. Allen, 1991 .

Comparison of reference evapotranspiration calculations across a range of climates.

Richard G. Allen, Ronald L. Elliott, I. A. Walter, 2000 .