diff --git a/assets/cn_default.js b/assets/cn_default.js
index 09c3a005c0f8390a4e658505f00c52b8751594ee..efa888526d9b244937a4ebe334d4e9bd198e9756 100644
--- a/assets/cn_default.js
+++ b/assets/cn_default.js
@@ -211,7 +211,7 @@ function update_nodes(nodes) {
 
     node.append("circle")
         .attr("class", "circle")
-        .attr("r", function(d) {return 1.5*r+d.citations*0.05})
+        .attr("r", function(d) {return 1.5*r+d.citations*0.15})
         .style("fill", function(d){ return color(d.group)})
         .on('click', click_node);
 
@@ -230,7 +230,7 @@ function update_nodes(nodes) {
 * @param {string} target - target node
 */
 function update_marker(color, target) {
-    var radius = 1.5*r+target.citations*0.05;
+    var radius = 1.5*r+target.citations*0.15;
     svg.append('defs').append('marker')
         .attr('id',color.replace("#", "")+radius)
         .attr('viewBox','-0 -5 10 10')
@@ -329,7 +329,6 @@ function textbox_content(node) {
     +'</br>'+node.citations;
     text_abstract = node.abstract;
     document.getElementById('textbox').innerHTML = text_info;
-    document.getElementById('textbox').innerHTML = text_info;
 }
 
 /**
diff --git a/assets/cn_timeline.js b/assets/cn_timeline.js
index 978e1a5347ff9ee14882ee5db5f7328a5ca53527..900cc2ab968572a4b9ccad7e0cb34233802f6891 100644
--- a/assets/cn_timeline.js
+++ b/assets/cn_timeline.js
@@ -249,7 +249,7 @@ function update_nodes(nodes) {
 
     node.append("circle")
         .attr("class", "circle")
-        .attr("r", function(d) {return 1.5*r+d.citations*0.05})
+        .attr("r", function(d) {return 1.5*r+d.citations*0.15})
         .style("fill", function(d){ return color(d.group)})
         .on('click', click_node);
 
@@ -268,7 +268,7 @@ function update_nodes(nodes) {
 * @param {string} target - target node
 */
 function update_marker(color, target) {
-    var radius = 1.5*r+target.citations*0.05;
+    var radius = 1.5*r+target.citations*0.15;
     svg.append('defs').append('marker')
         .attr('id',color.replace("#", "")+radius)
         .attr('viewBox','-0 -5 10 10')
@@ -368,7 +368,7 @@ function textbox_content(node) {
     text_info = "Title:" + '</br>' + node.name +
     '</br>' +'</br>'+"Author:"+ '</br>' +authors+'</br>'+'</br>'+"Date:"+'</br>'
     +node.year+'</br>'+'</br>'+"Journal:"+'</br>'+node.journal+'</br>'+'</br>'+"DOI:"
-    +'</br>'+'<a href="'+node.doi+ '">'+node.doi+'</a>'+'</br>'+'</br>'+"Citations:"
+    +'</br>'+node.doi+'</br>'+'</br>'+"Citations:"
     +'</br>'+node.citations;
     text_abstract = node.abstract;
     document.getElementById('textbox').innerHTML = text_info;