airGR citations are updated

inst/CITATION

@@ -2,11 +2,11 @@ citHeader("To cite airGR in publications use these references:")
 
 citEntry(entry="Article",
 	title = "airGR: A suite of lumped hydrological models in an R-package",
-        author = personList(as.person("L. Coron"), as.person("C. Perrin"), as.person("O. Delaigue"), as.person("G. Thirel"), as.person("V. Andréassian")),
+    author = personList(as.person("L. Coron"), as.person("G. Thirel"), as.person("O. Delaigue"), as.person("C. Perrin"), as.person("V. Andréassian")),
 	journal = "Environmental Modelling and software",
   	year = "in prep.",       
         textVersion = 
-        paste("Coron, L., Perrin, C., Delaigue, O., Thirel, G. and Andréassian, V. ",
+        paste("Coron, L., Thirel, G., Delaigue, O., Perrin, C. and Andréassian, V. ",
 	       "(in prep.): ", 
                "airGR: A suite of lumped hydrological models in an R-package. ",
                "Environmental Modelling and software. ",
@@ -15,13 +15,13 @@ citEntry(entry="Article",
 
 citEntry(entry="Manual",
 	title = "airGR: Suite of GR hydrological models for precipitation-runoff modelling",
-        author = personList(as.person("L. Coron"), as.person("C. Perrin"), as.person("C. Michel")),
+    author = personList(as.person("L. Coron"), as.person("C. Perrin"), as.person("C. Michel")),
 	journal = "R News",
   	year = "2016",
     note = "R package version 1.0.2",
     url = "https://webgr.irstea.fr/airGR/?lang=en",
         textVersion = 
-        paste("Coron, L., Perrin, C., Michel, C. ",
+        paste("Coron, L., Perrin, C. and Michel, C. ",
 	       "(2016): ", 
                "airGR: Suite of GR hydrological models for precipitation-runoff modelling. ",
                "R package version 1.0.2 ",