diff --git a/src/core/js/ext_map.js b/src/core/js/ext_map.js
index 3b89f72be05d2307cdcc2e624e4b8a69684d591f..091cf54caf9abac2dc9d914c9c68291b3ab4a93f 100644
--- a/src/core/js/ext_map.js
+++ b/src/core/js/ext_map.js
@@ -121,7 +121,7 @@ var caosdb_map = new function () {
      * {@link view_change_handler} plugin.
      *
      * Note: Leaflet comes with a few pre-defined coordinate reference systems
-     * (cf. {@link https://leafletjs.com/reference-1.5.0.html#crs Defined
+     * (cf. {@link https://leafletjs.com/reference-1.5.1.html#crs Defined
      * CRSs}). By default, the default CRS of leaflet will be used for the map
      * (which is currently EPSG:3857, the Sperical Mercator). If {@link crs} is
      * a string, e.g. "EPSG:3395" or "Simple" that matches the pre-defined CRS,
@@ -133,7 +133,7 @@ var caosdb_map = new function () {
      *     preserving the active view and view configuration across reloads of
      *     the page.
      * @property {string} name - the name is shown in the views menu.
-     * @property {string} descriptoin - a short discription of the views
+     * @property {string} description - a short discription of the views
      *     purpose and properties. Also shown in the views menu when mouse
      *     hovers over the name.
      * @property {number} zoom - Initial zoom level. Must be an integer and
@@ -151,9 +151,9 @@ var caosdb_map = new function () {
 
     /**
      * The TileLayerConfig is a thin extension wrapper around the {@link
-     * https://leafletjs.com/reference-1.5.0.html#tilelayer-wms-option
+     * https://leafletjs.com/reference-1.5.1.html#tilelayer-wms-option
      * TileLayer.WMS options} and the {@link
-     * https://leafletjs.com/reference-1.5.0.html#tilelayer-option TileLayer
+     * https://leafletjs.com/reference-1.5.1.html#tilelayer-option TileLayer
      * options}.
      *
      * Only three properties are defined by the wrapper {@link type}, {@link
@@ -174,9 +174,9 @@ var caosdb_map = new function () {
      *
      * The {@link options} is an object which has all properties of the
      * respective tileLayer as defined by {@link
-     * https://leafletjs.com/reference-1.5.0.html#tilelayer-option
+     * https://leafletjs.com/reference-1.5.1.html#tilelayer-option
      * TileLayer options} when {@link type} = "osm" or {@link
-     * https://leafletjs.com/reference-1.5.0.html#tilelayer-wms-option
+     * https://leafletjs.com/reference-1.5.1.html#tilelayer-wms-option
      * TileLayer.WMS options} when {@link type} = "wms".
      *
      * @example <caption>Example for a TileLayerConfig with OSM</caption>
@@ -205,9 +205,9 @@ var caosdb_map = new function () {
      *     "wms"
      * @property {string} url - the url of the OSM or WMS server.
      * @property {object} options - the {@link
-     *     https://leafletjs.com/reference-1.5.0.html#tilelayer-option
+     *     https://leafletjs.com/reference-1.5.1.html#tilelayer-option
      *     TileLayer options} or {@link
-     *     https://leafletjs.com/reference-1.5.0.html#tilelayer-wms-option
+     *     https://leafletjs.com/reference-1.5.1.html#tilelayer-wms-option
      *     TileLayer.WMS options}.
      */