| article html file updated | 6 February 2020 21:39 CET | Update | https://www.mdpi.com/2306-7381/2/3/150 |
| article html file updated | 6 May 2019 13:45 CEST | Update | N/A |
| article html file updated | 26 March 2019 08:31 CET | Update | N/A |
| article html file updated | 21 August 2015 15:34 CEST | Original file | N/A |
| article pdf uploaded. | 12 August 2015 12:27 CEST | Version of Record | https://www.mdpi.com/2306-7381/2/3/150/pdf |
