Minor fix to docs

Changes to be committed:
	modified:   docs/notebooks/receiver_efficiency_index.ipynb.rst
	modified:   py_notebooks/receiver_efficiency_index.ipynb
	modified:   py_notebooks/residence_index.ipynb

docs/notebooks/receiver_efficiency_index.ipynb.rst

@@ -10,8 +10,10 @@ create a context for the detections. Both the amount of unique tags and
 number of species are taken into consideration in the calculation.
 
 The receiver efficiency index implement is implemented based on the
-paper [paper place holder]. Each receiver’s index is calculated on the
-formula of:
+paper `Acoustic telemetry array evolution: From species- and
+project-specific designs to large-scale, multispecies, cooperative
+networks <https://doi.org/10.1016/j.fishres.2018.09.015>`__. Each
+receiver’s index is calculated on the formula of:
 
 .. container:: large-math
 

py_notebooks/receiver_efficiency_index.ipynb

@@ -10,7 +10,7 @@
     "The function takes a set detections and a deployment history of the receivers to create a context for the detections. Both the amount of unique tags and number of species are taken into \n",
     "consideration in the calculation.\n",
     "\n",
-    "The receiver efficiency index implement is implemented based on the paper [paper place holder]. Each receiver's index is calculated on the formula of:\n",
+    "The receiver efficiency index implement is implemented based on the paper [Acoustic telemetry array evolution: From species- and project-specific designs to large-scale, multispecies, cooperative networks](https://doi.org/10.1016/j.fishres.2018.09.015). Each receiver's index is calculated on the formula of:\n",
     "\n",
     "\n",
     "<br/>\n",
@@ -66,7 +66,7 @@
  "metadata": {
   "anaconda-cloud": {},
   "kernelspec": {
-   "display_name": "Python [default]",
+   "display_name": "Python 3",
    "language": "python",
    "name": "python3"
   },
@@ -80,7 +80,7 @@
    "name": "python",
    "nbconvert_exporter": "python",
    "pygments_lexer": "ipython3",
-   "version": "3.6.6"
+   "version": "3.6.7"
   },
   "varInspector": {
    "cols": {

py_notebooks/residence_index.ipynb

@@ -386,7 +386,7 @@
  "metadata": {
   "anaconda-cloud": {},
   "kernelspec": {
-   "display_name": "Python [default]",
+   "display_name": "Python 3",
    "language": "python",
    "name": "python3"
   },
@@ -400,7 +400,7 @@
    "name": "python",
    "nbconvert_exporter": "python",
    "pygments_lexer": "ipython3",
-   "version": "3.6.6"
+   "version": "3.6.7"
   },
   "varInspector": {
    "cols": {
@@ -433,5 +433,5 @@
   }
  },
  "nbformat": 4,
- "nbformat_minor": 1
+ "nbformat_minor": 2
 }