| article html file updated | 8 February 2020 04:13 CET | Update | https://www.mdpi.com/2075-4701/7/4/151 |
| article html file updated | 24 September 2019 11:25 CEST | Update | N/A |
| article html file updated | 4 May 2019 01:02 CEST | Update | N/A |
| article html file updated | 28 April 2017 07:03 CEST | Update | N/A |
| article html file updated | 24 April 2017 07:48 CEST | Original file | N/A |
| article xml uploaded. | 24 April 2017 07:46 CEST | Update | https://www.mdpi.com/2075-4701/7/4/151/xml |
| article pdf uploaded. | 24 April 2017 07:46 CEST | Updated version of record | https://www.mdpi.com/2075-4701/7/4/151/pdf |
| article pdf uploaded. | 23 April 2017 11:31 CEST | Version of Record | https://www.mdpi.com/2075-4701/7/4/151/pdf-vor |
