diff --git a/myconfig.org b/myconfig.org
index 6efbce3..4f6a02d 100644
--- a/myconfig.org
+++ b/myconfig.org
@@ -566,7 +566,6 @@ Add some [[https://github.com/nex3/perspective-el][perspective]] to emacs
                ("b" . persp-switch-to-buffer*)))
 #+end_src
 
-
 * Git management
   All you need for git
   - [[https://github.com/magit/magit][magit]] interface to git from emacs (there are a lot of tutos)
@@ -1154,6 +1153,30 @@ Have a look at [[https://github.com/jgru/consult-org-roam][the project in github
     ("C-c n z" . consult-org-roam-search))
 #+end_src
 
+* Cites and references
+** calibredb
+- [[https://github.com/chenyanming/calibredb.el][Check github]]
+- Check Virtual Libraries
+- Check commands binding
+#+begin_src emacs-lisp
+  (use-package calibredb
+  :defer t
+  :config
+  (setq calibredb-root-dir "~/Biblioteca")
+  (setq calibredb-db-dir (expand-file-name "metadata.db" calibredb-root-dir))
+  (setq calibredb-library-alist '(("~/Biblioteca"))))
+#+end_src
+** Citar
+- [[https://github.com/bdarcus/citar][Citar github]]
+#+begin_src emacs-lisp
+  (use-package citar
+    :bind (("C-c b" . citar-insert-citation)
+           :map minibuffer-local-map
+           ("M-b" . citar-insert-preset))
+    :custom
+    (citar-bibliography '("~/Dropbox/bib/references.bib")))
+#+end_src
+
 * flycheck
 Syntax checking for programming languages