| article html file updated | 8 February 2020 07:13 CET | Update | https://www.mdpi.com/2218-273X/7/2/41 |
| article html file updated | 25 September 2019 02:58 CEST | Update | N/A |
| article html file updated | 3 May 2019 19:27 CEST | Update | N/A |
| article html file updated | 28 June 2017 12:42 CEST | Update | N/A |
| article html file updated | 6 June 2017 09:29 CEST | Original file | N/A |
| article xml uploaded. | 6 June 2017 09:28 CEST | Original file | https://www.mdpi.com/2218-273X/7/2/41/xml |
| article pdf uploaded. | 6 June 2017 09:28 CEST | Updated version of record | https://www.mdpi.com/2218-273X/7/2/41/pdf |
| article pdf uploaded. | 1 June 2017 14:47 CEST | Version of Record | https://www.mdpi.com/2218-273X/7/2/41/pdf-vor |
