| article html file updated | 8 February 2020 04:49 CET | Update | https://www.mdpi.com/2073-445X/6/2/31 |
| article html file updated | 24 September 2019 14:31 CEST | Update | N/A |
| article html file updated | 3 May 2019 23:57 CEST | Update | N/A |
| article html file updated | 30 June 2017 09:19 CEST | Update | N/A |
| article html file updated | 23 May 2017 03:28 CEST | Update | N/A |
| article html file updated | 3 May 2017 11:10 CEST | Original file | N/A |
| article xml uploaded. | 3 May 2017 11:09 CEST | Original file | https://www.mdpi.com/2073-445X/6/2/31/xml |
| article pdf uploaded. | 3 May 2017 11:09 CEST | Updated version of record | https://www.mdpi.com/2073-445X/6/2/31/pdf |
| article pdf uploaded. | 1 May 2017 06:28 CEST | Version of Record | https://www.mdpi.com/2073-445X/6/2/31/pdf-vor |
