diff --git a/DESCRIPTION b/DESCRIPTION
index 0919410dc0ab9c2e47f437afa68d1f568fb86356..b00a75c6d71d0f1d11761d2b22b772dbca8b131d 100755
--- a/DESCRIPTION
+++ b/DESCRIPTION
@@ -1,8 +1,8 @@
 Package: hydroPSO
 Type: Package
 Title: Model-Independent Particle Swarm Optimisation for Environmental Models
-Version: 0.1-58-8
-Date: 2012-09-26
+Version: 0.1-58-9
+Date: 2012-09-27
 Author: Mauricio Zambrano-Bigiarini [aut, cre] and Rodrigo Rojas [ctb]
 Authors@R: c(person("Mauricio", "Zambrano-Bigiarini", email="mzb.devel@gmail.com", role=c("aut","cre")), person("Rodrigo", "Rojas", email="Rodrigo.RojasMujica@gmail.com", role=c("ctb")) )
 Maintainer: Mauricio Zambrano-Bigiarini <mzb.devel@gmail.com>
diff --git a/man/hydromod.Rd b/man/hydromod.Rd
index 6c58a9fcd94ece809577066d7276a2c89acc4bc0..80ae4a623937c54fb43c2e670c8fa473cde32029 100755
--- a/man/hydromod.Rd
+++ b/man/hydromod.Rd
@@ -44,7 +44,7 @@ logical; if TRUE, progress messages are printed to the screen \cr
 If \code{verbose=TRUE}, the following messages will appear: i) parameter values for each particle; (ii) model execution; iii) extraction of simulated values; and iv) computation of the goodness-of-fit measure
 }
   \item{out.FUN}{
-character, name of a valid R function to read the model outputs and transform them into a (zoo) object to be compared against \code{obs} (e.g., see \code{\link[base]{read.table}}, \code{\link[base]{read.csv}}
+character, name of a valid R function to read the model outputs and transform them into a (zoo) object to be compared against \code{obs} (e.g., see \code{\link[utils]{read.table}}, \code{\link[utils]{read.csv}} 
 }
   \item{out.FUN.args}{
 list, arguments to be passed to \code{out.FUN}
diff --git a/man/test_functions.Rd b/man/test_functions.Rd
index b422d9b3b41b80c4db773c5ab8a36097e6f0079d..610c7c0f826862c477f099a5bb9eb56dea30111c 100755
--- a/man/test_functions.Rd
+++ b/man/test_functions.Rd
@@ -78,7 +78,10 @@ Problem Definitions and Evaluation Criteria for the CEC 2005 Special Session on
 Benchmark Problems \cr
 \cite{\url{http://www.cs.cmu.edu/afs/cs/project/jair/pub/volume24/ortizboyer05a-html/node6.html}}
 
+\cite{Barrera, J., and C. Coello Coello. 2010, Test function generators for assessing the performance of PSO algorithms in multimodal optimization, in Handbook of Swarm Intelligence, vol. 8, edited by B. Panigrahi, Y. Shi, and M.-H. Lim, chap. Adaptation, Learning, and Optimization, pp. 89–117, Springer Berlin Heidelberg, doi:10.1007/978-3-642-17390-5 4}
+
 \cite{\url{http://www.zsd.ict.pwr.wroc.pl/files/docs/functions.pdf}}
+
 }
 \author{
 Mauricio Zambrano-Bigiarini, \email{mzb.devel@gmail.com}