Richard Ryan

发表

Scheduling Equipment-Intensive Horizontal Construction Projects

Douglas D. Gransberg, Calin M. Popescu, Richard Ryan, 2006 .

Evolution of Heavy Construction Equipment

Douglas D. Gransberg, Calin M. Popescu, Richard Ryan, 2006 .

Scheduling Lifting Equipment for Vertical Construction

Douglas D. Gransberg, Calin M. Popescu, Richard Ryan, 2006 .

Advanced Methods in Estimating and Optimizing Construction Equipment System Productivity

Douglas D. Gransberg, Calin M. Popescu, Richard Ryan, 2006 .

What Makes for a Good Day? Competence and Autonomy in the Day and in the Person

Kennon M. Sheldon, Richard Ryan, Harry T. Reis, 1996 .