| article html file updated | 8 February 2020 07:07 CET | Update | https://www.mdpi.com/2075-5309/7/2/43 |
| article html file updated | 3 May 2019 19:40 CEST | Update | N/A |
| article html file updated | 28 June 2017 12:47 CEST | Update | N/A |
| article html file updated | 22 June 2017 03:54 CEST | Update | N/A |
| article xml uploaded. | 22 June 2017 03:52 CEST | Update | https://www.mdpi.com/2075-5309/7/2/43/xml |
| article pdf uploaded. | 22 June 2017 03:52 CEST | Updated version of record | https://www.mdpi.com/2075-5309/7/2/43/pdf |
| article html file updated | 2 June 2017 04:42 CEST | Original file | N/A |
| article pdf uploaded. | 2 June 2017 03:58 CEST | Updated version of record | https://www.mdpi.com/2075-5309/7/2/43/pdf-vor |
| article pdf uploaded. | 31 May 2017 16:37 CEST | Version of Record | https://www.mdpi.com/2075-5309/7/2/43/pdf-vor |
