Generalized Balanced Tournament Designs with Block Size Four
				
										Keywords:
				
				
																		generalized balanced tournament design, 													holey generalized balanced tournament design, 													starter-adder															
			
			
										Abstract
In this paper, we remove the outstanding values $m$ for which the existence of a GBTD$(4,m)$ has not been decided previously. This leads to a complete solution to the existence problem regarding GBTD$(4,m)$s.