diff --git a/content/zettels/inertial_sensors.md b/content/zettels/inertial_sensors.md
index 3dd25ed..96b69e4 100644
--- a/content/zettels/inertial_sensors.md
+++ b/content/zettels/inertial_sensors.md
@@ -4,7 +4,7 @@ author = ["Thomas Dehaeze"]
 draft = false
 +++
 
-**Backlinks**:
+_Backlinks_:
 
 -   [Modal Analysis]({{< relref "modal_analysis" >}})
 -   [Sensors]({{< relref "sensors" >}})
@@ -17,10 +17,10 @@ Tags
 
 ## Review of Absolute (inertial) Position Sensors {#review-of-absolute--inertial--position-sensors}
 
--   Collette, C. et al., Review: inertial sensors for low-frequency seismic vibration measurement ([Collette, Janssens, Fernandez-Carmona, et al. 2012](#org0d7c41a))
--   Collette, C. et al., Comparison of new absolute displacement sensors ([Collette, Janssens, Mokrani, et al. 2012](#org6923ef9))
+-   Collette, C. et al., Review: inertial sensors for low-frequency seismic vibration measurement ([Collette, Janssens, Fernandez-Carmona, et al. 2012](#orgb771f76))
+-   Collette, C. et al., Comparison of new absolute displacement sensors ([Collette, Janssens, Mokrani, et al. 2012](#orgbe5a4da))
 
-<a id="org20d17d0"></a>
+<a id="org970d1c5"></a>
 
 {{< figure src="/ox-hugo/collette12_absolute_disp_sensors.png" caption="Figure 1: Dynamic range of several types of inertial sensors; Price versus resolution for several types of inertial sensors" >}}
 
@@ -40,7 +40,7 @@ Wireless Accelerometers
 
 -   <https://micromega-dynamics.com/products/recovib/miniature-vibration-recorder/>
 
-<a id="org1454968"></a>
+<a id="orgf5061d8"></a>
 
 {{< figure src="/ox-hugo/inertial_sensors_characteristics_accelerometers.png" caption="Figure 2: Characteristics of commercially available accelerometers <sup id=\"642a18d86de4e062c6afb0f5f20501c4\"><a href=\"#collette11_review\" title=\"Collette, Artoos, Guinchard, Janssens, , Carmona Fernandez \&amp; Hauviller, Review of sensors for low frequency seismic vibration  measurement, CERN, (2011).\">collette11_review</a></sup>" >}}
 
@@ -57,13 +57,13 @@ Wireless Accelerometers
 | Guralp                | [link](https://www.guralp.com/products/surface)                                             | UK      |
 | Nanometric            | [link](https://www.nanometrics.ca/products/seismometers)                                    | Canada  |
 
-<a id="org873c46c"></a>
+<a id="orge048793"></a>
 
 {{< figure src="/ox-hugo/inertial_sensors_characteristics_geophone.png" caption="Figure 3: Characteristics of commercially available geophones <sup id=\"642a18d86de4e062c6afb0f5f20501c4\"><a href=\"#collette11_review\" title=\"Collette, Artoos, Guinchard, Janssens, , Carmona Fernandez \&amp; Hauviller, Review of sensors for low frequency seismic vibration  measurement, CERN, (2011).\">collette11_review</a></sup>" >}}
 
 
 ## Bibliography {#bibliography}
 
-<a id="org0d7c41a"></a>Collette, C., S. Janssens, P. Fernandez-Carmona, K. Artoos, M. Guinchard, C. Hauviller, and A. Preumont. 2012. “Review: Inertial Sensors for Low-Frequency Seismic Vibration Measurement.” _Bulletin of the Seismological Society of America_ 102 (4):1289–1300. <https://doi.org/10.1785/0120110223>.
+<a id="orgb771f76"></a>Collette, C., S. Janssens, P. Fernandez-Carmona, K. Artoos, M. Guinchard, C. Hauviller, and A. Preumont. 2012. “Review: Inertial Sensors for Low-Frequency Seismic Vibration Measurement.” _Bulletin of the Seismological Society of America_ 102 (4):1289–1300. <https://doi.org/10.1785/0120110223>.
 
-<a id="org6923ef9"></a>Collette, C, S Janssens, B Mokrani, L Fueyo-Roza, K Artoos, M Esposito, P Fernandez-Carmona, M Guinchard, and R Leuxe. 2012. “Comparison of New Absolute Displacement Sensors.” In _International Conference on Noise and Vibration Engineering (ISMA)_.
+<a id="orgbe5a4da"></a>Collette, C, S Janssens, B Mokrani, L Fueyo-Roza, K Artoos, M Esposito, P Fernandez-Carmona, M Guinchard, and R Leuxe. 2012. “Comparison of New Absolute Displacement Sensors.” In _International Conference on Noise and Vibration Engineering (ISMA)_.