| article html file updated | 6 February 2020 04:10 CET | Update | https://www.mdpi.com/2075-471X/2/3/283 |
| article html file updated | 20 September 2019 00:42 CEST | Update | N/A |
| article html file updated | 8 May 2019 00:54 CEST | Update | N/A |
| article html file updated | 21 March 2019 04:05 CET | Update | N/A |
| article html file updated | 27 March 2017 07:46 CEST | Original file | N/A |
| article pdf uploaded. | 6 September 2013 16:38 CEST | Updated version of record | https://www.mdpi.com/2075-471X/2/3/283/pdf |
| article pdf uploaded. | 4 September 2013 10:28 CEST | Version of Record | https://www.mdpi.com/2075-471X/2/3/283/pdf-vor |
