I know the first letter of the author's last name:

 
 
Rackman, Neil
number of models: 1
  • organisation: Huthwaite
  • country: United States
  • born: n/a
 
Robinson, Patrick
number of models: 1
  • organisation: University of Pennsylvania (Wharton School)
  • country: Canada
  • born: n/a
 
Rogers, Everett M.
number of models: 1
  • organisation: Iowa State University
  • country: United States
  • born: 1931
  • deceased: 2004
 
Rothwell, Roy R.
number of models: 1
  • organisation: n/a
  • country: United Kingdom
  • born: 1941
  • deceased: 2003