

  citHeader("To cite PTAk in publications use preferably the two references or the JSS one:")

desc <- packageDescription("PTAk")
year <- sub(".*(2[[:digit:]]{3})-.*", "\\1", desc$Date)
vers <- paste("R package version", desc$Version)



citEntry(entry="Article",
	title = "\\textup{A Singular Value Decomposition of  \\textit{k}-Way Array for
       a Principal Component Analysis of Multiway Data, \\textsc{PTA}-\\textit{k}}",
        author = personList(as.person("D. Leibovici"),as.person("R. Sabatier")),
	journal = "Linear Algebra and Its Applications",
  	year = "1998",
 volume  = "269",
 pages  ="307-329",        
        textVersion = 
        paste("Leibovici, D. and Sabatier, R.",
	       "(1998)", 
               "A Singular Value Decomposition of  k-Way Array for 
               a Principal Component Analysis of Multiway Data, PTA-k. ",
               "Linear Algebra and its Applications, 269:307-329 ",
               sep="")
         )
 
 
 citEntry(entry="Manual",
    title = "\\textup{PTAk}: \\textup{Principal Tensor Analysis on k modes}",
    author = as.person("Leibovici D.G."),
    year = {2009},
    edition = " \\textup{R}-package version 1.1-21.",
    url = "http://cran.r-project.org/web/packages/PTAk/index.html",
       textVersion=
        paste("Leibovici D.G. ",
	             "(2009) ", 
               "PTAk: Principal Tensor Analysis on k modes, ",
               "R-package version 1.1-21. ",
               "edition. http://cran.r-project.org/web/packages/PTAk/index.html. ",
               sep="")
         )
         
citEntry(entry="Article",
	title = "\\textup{Spatio-Temporal Multiway Decompositions using Principal Tensor Analysis on k-modes: the  \\textsc{R}-package \\textsc{PTAk}}",
        author = as.person("Leibovici D.G."),
	journal = "Journal of Statistical Software",
  	year = "accepted in 2009",
	volume = "xx",
	pages = "1-34",
	number = "x",         
        textVersion = 
        paste("Leibovici D.G. ",
	       "(accepted in 2009) ", 
               "Spatio-Temporal Multiway Decompositions using Principal Tensor Analysis on k-modes: the R-package PTAk. ",
               "Journal of Statistical Software. ",
               "xx(x): 1-34.",
               sep="")
         )
         
    citFooter("visit also http://c3s2i.free.fr or http://cgs.nottingham.ac.uk/~lgzdl")