| article html file updated | 6 February 2020 01:28 CET | Update | https://www.mdpi.com/2075-1680/2/2/100 |
| article html file updated | 8 May 2019 06:21 CEST | Update | N/A |
| article html file updated | 20 March 2019 20:54 CET | Update | N/A |
| article html file updated | 19 December 2016 11:30 CET | Original file | N/A |
| article pdf uploaded. | 11 April 2013 12:20 CEST | Version of Record | https://www.mdpi.com/2075-1680/2/2/100/pdf |
