diff --git a/downloadFromISSN.ipynb b/downloadFromISSN.ipynb
new file mode 100644
index 0000000..cf44eae
--- /dev/null
+++ b/downloadFromISSN.ipynb
@@ -0,0 +1,144 @@
+{
+ "cells": [
+  {
+   "cell_type": "code",
+   "execution_count": 5,
+   "id": "d671915a-cc99-4533-9bae-a099b09aa297",
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "import requests\n",
+    "import json"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 61,
+   "id": "e0042241-45a9-4bc7-98f3-fbcf61a883db",
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "\n",
+    "headers = {\n",
+    "    'Accept': 'application/json',\n",
+    "}\n",
+    "\n",
+    "response = requests.get('https://api.issn.org/authenticate/[user]/[param]', headers=headers)"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 14,
+   "id": "1a60844e-5e2e-420c-b95d-1cd6a0c8e8fa",
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "ACCESS_TOKEN = json.loads(response.text)['token']"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 36,
+   "id": "d4c853bf-935e-4822-859c-b4018f3eb10f",
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "#downloading closed from oaire\n",
+    "fin = open('./input/OpenAireClosed.json')\n",
+    "fout = open('downloadedITNotOpen.json','w')\n",
+    "\n",
+    "headers = {\n",
+    "    'Accept': 'application/json',\n",
+    "    'Content-Type': 'application/json',\n",
+    "    'Authorization': 'JWT ' + ACCESS_TOKEN\n",
+    "}\n",
+    "\n",
+    "params = {\n",
+    "    'natifjson': 'true',\n",
+    "}\n",
+    "\n",
+    "lines = fin.read()\n",
+    "dic = json.loads(lines[0])\n",
+    "\n",
+    "downloaded = []\n",
+    "for entry in dic:\n",
+    "    issn = ''\n",
+    "    if 'issnPrinted' in entry and entry['issnPrinted'] != '':\n",
+    "        issn = entry['issnPrinted']\n",
+    "    elif 'issnOnline' in entry and entry['issnOnline'] != '':\n",
+    "        issn = entry['issnOnline']\n",
+    "    if issn!='' and not issn in downloaded:\n",
+    "        json_data = {\"search\":[issn], 'page':0, 'size':10}\n",
+    "        response = requests.post('https://api.issn.org/search', params=params, headers=headers, json=json_data)\n",
+    "        fout.write(json.dumps(response.text) + \"\\n\")\n",
+    "        downloaded.append(issn)\n",
+    "\n",
+    "fout.close()"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 1,
+   "id": "b02bc2d6-38b2-4a19-9395-6875cda450e2",
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "#downloading closed from oalex\n",
+    "fin = open('./input/itClosedFromOpenAlex.json')\n",
+    "fout = open('downloadedItNotOpenoalex.json','w')\n",
+    "\n",
+    "headers = {\n",
+    "    'Accept': 'application/json',\n",
+    "    'Content-Type': 'application/json',\n",
+    "    'Authorization': 'JWT ' + ACCESS_TOKEN\n",
+    "}\n",
+    "\n",
+    "params = {\n",
+    "    'natifjson': 'true',\n",
+    "}\n",
+    "\n",
+    "lines = fin.read().split(\"\\n\")\n",
+    "\n",
+    "downloaded = []\n",
+    "for line in lines:\n",
+    "    if line == '':\n",
+    "        continue\n",
+    "    dic = json.loads(line[:-1])\n",
+    "    issn = ''\n",
+    "    if 'issn_l' in dic and dic['issn_l'] != '':\n",
+    "        issn = dic['issn_l']\n",
+    "    elif 'issn' in dic and len(dic['issn']) >= 1:\n",
+    "        issn = dic['issn'][0]\n",
+    "    if issn!='' and not issn in downloaded:\n",
+    "        json_data = {\"search\":[issn], 'page':0, 'size':10}\n",
+    "        response = requests.post('https://api.issn.org/search', params=params, headers=headers, json=json_data)\n",
+    "        fout.write(response.text + \"\\n\")\n",
+    "        downloaded.append(issn)   \n",
+    "    \n",
+    "\n",
+    "fout.close()\n"
+   ]
+  }
+ ],
+ "metadata": {
+  "kernelspec": {
+   "display_name": "Python 3 (ipykernel)",
+   "language": "python",
+   "name": "python3"
+  },
+  "language_info": {
+   "codemirror_mode": {
+    "name": "ipython",
+    "version": 3
+   },
+   "file_extension": ".py",
+   "mimetype": "text/x-python",
+   "name": "python",
+   "nbconvert_exporter": "python",
+   "pygments_lexer": "ipython3",
+   "version": "3.12.3"
+  }
+ },
+ "nbformat": 4,
+ "nbformat_minor": 5
+}