"%,%" <- paste0

citHeader("To cite RRF in publications use:")

 bibentry(bibtype="techreport",
         title = "Interim Analysis Planning using the PwrGSD package",
         author = person(family="Izmirlian", given="Grant",email="grant.izmirlian@nih.gov"),
         institution = "NCI Div. of Cancer Prevention",
         year         = "2004",      		 
         textVersion = 
         paste("G. Izmirlian(2004). ", 
               "Interim Analysis Planning using the PwrGSD package. ",
               " NCI Div. of Cancer Prevention Technical Report.",
               sep=""))		

 bibentry(bibtype = "Article",
          title = "Estimation of the relative risk following group sequential procedure based upon the " %,%
                  "weighted log-rank statistic", 
         author = person(family="Izmirlian", given="Grant",email="grant.izmirlian@nih.gov"),
	 journal = "Statistics and its Interface",
         year         = "2014",      
         volume       = "7",
         number       = "1",
         pages        = "27-42",
         textVersion = 
         paste("G. Izmirlian (2014). ", 
               "Estimation of the relative risk following group sequential " %,% 
               "procedure based upon the weighted log-rank statistic. ",
               "Statistics and its Interface 7(1): 27-42.",
               sep=""))
