| article html file updated | 8 February 2020 03:29 CET | Update | https://www.mdpi.com/2075-4418/7/2/22 |
| article html file updated | 4 May 2019 02:25 CEST | Update | N/A |
| article html file updated | 29 June 2017 11:20 CEST | Update | N/A |
| article html file updated | 21 April 2017 06:31 CEST | Original file | N/A |
| article xml uploaded. | 21 April 2017 06:30 CEST | Original file | https://www.mdpi.com/2075-4418/7/2/22/xml |
| article pdf uploaded. | 21 April 2017 06:30 CEST | Updated version of record | https://www.mdpi.com/2075-4418/7/2/22/pdf |
| article pdf uploaded. | 13 April 2017 12:43 CEST | Version of Record | https://www.mdpi.com/2075-4418/7/2/22/pdf-vor |
