| article html file updated | 8 February 2020 01:24 CET | Update | https://www.mdpi.com/2075-1729/7/1/12 |
| article html file updated | 23 September 2019 19:29 CEST | Update | N/A |
| article html file updated | 4 May 2019 06:51 CEST | Update | N/A |
| article html file updated | 29 March 2017 07:47 CEST | Update | N/A |
| article html file updated | 15 March 2017 05:01 CET | Original file | N/A |
| article xml uploaded. | 15 March 2017 05:00 CET | Original file | https://www.mdpi.com/2075-1729/7/1/12/xml |
| article pdf uploaded. | 15 March 2017 05:00 CET | Updated version of record | https://www.mdpi.com/2075-1729/7/1/12/pdf |
| article pdf uploaded. | 14 March 2017 16:05 CET | Version of Record | https://www.mdpi.com/2075-1729/7/1/12/pdf-vor |
