diff --git a/.obsidian/workspace b/.obsidian/workspace
index c7e0301c7..14d5f773d 100644
--- a/.obsidian/workspace
+++ b/.obsidian/workspace
@@ -52,11 +52,23 @@
           {
             "id": "305566bbcea2ba31",
             "type": "leaf",
-            "dimension": 1.1363636363636362,
+            "dimension": 0.5681818181818181,
             "state": {
               "type": "markdown",
               "state": {
-                "file": "patterns.md",
+                "file": "2021-06-09.md",
+                "mode": "source"
+              }
+            }
+          },
+          {
+            "id": "09b9c7136dcedcbf",
+            "type": "leaf",
+            "dimension": 0.5681818181818181,
+            "state": {
+              "type": "markdown",
+              "state": {
+                "file": "an analysis of the role of invariant patterns.md",
                 "mode": "source"
               }
             }
@@ -193,7 +205,7 @@
             "state": {
               "type": "backlink",
               "state": {
-                "file": "patterns.md",
+                "file": "an analysis of the role of invariant patterns.md",
                 "collapseAll": false,
                 "extraContext": false,
                 "sortOrder": "alphabetical",
@@ -210,7 +222,7 @@
             "state": {
               "type": "outline",
               "state": {
-                "file": "patterns.md"
+                "file": "an analysis of the role of invariant patterns.md"
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@@ -221,17 +233,17 @@
     "width": 300,
     "collapsed": true
   },
-  "active": "305566bbcea2ba31",
+  "active": "09b9c7136dcedcbf",
   "lastOpenFiles": [
-    "patterns.md",
+    "an analysis of the role of invariant patterns.md",
     "2021-06-09.md",
+    "patterns.md",
     "2021-06-03.md",
     "agora protocol.md",
     "arcades.md",
     "connected buildings.md",
     "common areas at the heart.md",
     "1*.md",
-    "roof garden.md",
-    "agora fediverse integration.md"
+    "roof garden.md"
   ]
 }
\ No newline at end of file
diff --git a/2021-06-09.md b/2021-06-09.md
index 110e0c178..8f759a6c9 100644
--- a/2021-06-09.md
+++ b/2021-06-09.md
@@ -1,2 +1,4 @@
 - [[patterning]]
-	- [[patterns]]
\ No newline at end of file
+	- [[a pattern language]]
+		- [[patterns]]
+		- [[an analysis of the role of invariant patterns]]
\ No newline at end of file
diff --git a/an analysis of the role of invariant patterns.md b/an analysis of the role of invariant patterns.md
new file mode 100644
index 000000000..4ef705a23
--- /dev/null
+++ b/an analysis of the role of invariant patterns.md	
@@ -0,0 +1,2 @@
+- [[go]] https://journals.sagepub.com/doi/full/10.1177/2399808318761396
+- 
\ No newline at end of file