my changes

database/migrations/2017_07_05_124312_create_documents_table.php

@@ -0,0 +1,32 @@
+<?php
+
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Database\Migrations\Migration;
+
+class CreateDocumentsTable extends Migration
+{
+    /**
+     * Run the migrations.
+     *
+     * @return void
+     */
+    public function up()
+    {
+        Schema::create('documents', function (Blueprint $table) {
+            $table->increments('id');
+            $table->string('publication_state', 100)->default('draft');;
+            $table->boolean('belongs_to_bibliography')->default('0');
+            $table->timestamps();
+        });
+    }
+
+    /**
+     * Reverse the migrations.
+     *
+     * @return void
+     */
+    public function down()
+    {
+        Schema::drop('documents');
+    }
+}