| article html file updated | 8 February 2020 04:17 CET | Update | https://www.mdpi.com/2076-2607/5/2/21 |
| article html file updated | 24 September 2019 11:46 CEST | Update | N/A |
| article html file updated | 4 May 2019 00:55 CEST | Update | N/A |
| article html file updated | 28 June 2017 14:09 CEST | Update | N/A |
| article html file updated | 25 April 2017 05:59 CEST | Original file | N/A |
| article xml uploaded. | 25 April 2017 05:58 CEST | Original file | https://www.mdpi.com/2076-2607/5/2/21/xml |
| article pdf uploaded. | 25 April 2017 05:58 CEST | Version of Record | https://www.mdpi.com/2076-2607/5/2/21/pdf |
