diff --git a/components/generate-crossref.js b/components/generate-crossref.js
index 9d789be..635c01b 100644
--- a/components/generate-crossref.js
+++ b/components/generate-crossref.js
@@ -1,3 +1,169 @@
+//import xml from "xml";
+
 export default function(data) {
-  return "crossref";
+
+  if (data.published == undefined) {
+    console.warn("Can't generate XML for post ", data.title, "with data", data);
+    return "";
+  }
+
+  var date = data.published;
+	var batch_timestamp = Math.floor(Date.now() / 1000);
+	var batch_id = data.authors[0].lastName.split(" ")[0].toLowerCase().slice(0,20);
+	    batch_id += "_" + date.getFullYear();
+	    batch_id += "_" + data.title.split(" ")[0].toLowerCase().slice(0,20) + "_" +  batch_timestamp;
+	// generate XML
+	var crf_data =
+		{doi_batch : [
+
+			{ _attr: {
+				version: "4.3.7",
+				xmlns: "http://www.crossref.org/schema/4.3.7",
+				"xmlns:xsi": "http://www.w3.org/2001/XMLSchema-instance",
+				"xsi:schemaLocation": "http://www.crossref.org/schema/4.3.7 http://www.crossref.org/schemas/crossref4.3.7.xsd",
+			}},
+
+			{ head: [
+				{doi_batch_id: batch_id},
+				{timestamp: batch_timestamp},
+				{depositor: [
+					{depositor_name: "Distill Admin"},
+					{email_address: "admin@distill.pub"},
+				]},
+				{registrant: "Distill"},
+			]},
+
+			{body: [
+				{journal: [
+
+					{journal_metadata: [
+						{full_title: data.journal.full_title || data.journal.title},
+						{abbrev_title: data.journal.abbrev_title || data.journal.title || data.journal.full_title},
+						{doi_data: [
+							{doi: data.journal.doi},
+							{resource: data.journal.url},
+						]},
+					]},
+
+					{journal_issue: [
+						{publication_date: [
+							{month: date.getMonth()+1},
+							{year: date.getFullYear()},
+						]},
+						{journal_volume: [
+							{volume: data.volume},
+						]},
+						{issue: data.issue},
+					]},
+
+					{journal_article: [
+						{titles: [
+							{title: data.title},
+						]},
+						{ contributors:
+							data.authors.map((author, ind) => (
+								{person_name: [
+									{ _attr: {
+										contributor_role: "author",
+										sequence: (ind == 0)? "first" : "additional"
+									}},
+									{given_name: author.firstName},
+									{surname: author.lastName},
+									{affiliation: author.affiliation}
+									// TODO: ORCID?
+								]}
+							))
+						},
+						{publication_date: [
+								{month: date.getMonth()+1},
+								{day: date.getDate()},
+								{year: date.getFullYear()}
+						]},
+						{ publisher_item: [
+							{item_number: data.doi}
+						]},
+						{doi_data: [
+							{doi: data.doi},
+							//{timestamp: ""},
+							{resource: data.url},
+						]},
+						{citation_list:
+							data.citations.map(key =>
+                  citation_xml(key, data.bibliography[key]))
+						}
+
+					]},
+
+				]},
+			]},
+		]};
+
+  return xml(crf_data);
+}
+
+function citation_xml(key, ent){
+	if (ent == undefined) return {};
+	var info = [];
+	info.push({_attr: {key: key}});
+	if ("title" in ent)
+		info.push({article_title: ent.title});
+	if ("author" in ent)
+		info.push({author: ent.author.split(" and ")[0].split(",")[0].trim()});
+	if ("journal" in ent)
+		info.push({journal_title: ent.journal});
+	if ("booktitle" in ent)
+		info.push({volume_title: ent.booktitle});
+	if ("volume" in ent)
+		info.push({volume: ent.volume});
+	if ("issue" in ent)
+		info.push({issue: ent.issue});
+	if ("doi" in ent)
+		info.push({doi: ent.doi});
+	return {citation: info}
+}
+
+function xml(obj) {
+  //console.log(typeof(obj), obj)
+  if (typeof obj === 'string') return obj;
+  if (typeof obj === 'number') return ""+obj;
+  let keys = Object.keys(obj);
+  if (keys.length != 1) console.error("can't interpret ", obj, "as xml");
+  let name = keys[0];
+  var full_content = obj[name];
+  var attr = {};
+  if (Array.isArray(full_content)){
+    var content = [];
+    for (var i in  full_content) {
+      var obj = full_content[i];
+      var obj_name = Object.keys(obj)[0];
+      if ("_attr" == obj_name) {
+        attr = obj["_attr"];
+      } else {
+        //console.log(Object.keys(obj)[0])
+        content.push(obj);
+      }
+    }
+  } else {
+    content = full_content;
+  }
+  if (content == undefined){
+    content = "undefined"
+  }
+
+  let attr_string = "";
+  for (var k in attr) {
+    attr_string += ` ${k}=\"${attr[k]}\"`
+  }
+
+  //console.log(typeof content, Array.isArray(content), content instanceof String, content)
+  if (Array.isArray(content)){
+    content = content.map(xml);
+    content = content.join("\n").split("\n");
+    content = content.map(s => "  " + s).join("\n")
+    var result = `<${name}${attr_string}>\n${content}\n</${name}>`;
+  } else {
+    content = xml(content);
+    var result = `<${name}${attr_string}>${content}</${name}>`;
+  }
+  return result;
 }