| article html file updated | 8 February 2020 00:16 CET | Update | https://www.mdpi.com/2220-9964/6/3/64 |
| article html file updated | 23 September 2019 12:51 CEST | Update | - |
| article html file updated | 4 May 2019 09:26 CEST | Update | - |
| article html file updated | 28 March 2017 11:02 CEST | Update | - |
| article html file updated | 25 February 2017 09:20 CET | Original file | - |
| article xml uploaded. | 25 February 2017 09:19 CET | Update | https://www.mdpi.com/2220-9964/6/3/64/xml |
| article xml uploaded. | 25 February 2017 09:19 CET | Original file | - |
| article pdf uploaded. | 25 February 2017 09:19 CET | Version of Record | https://www.mdpi.com/2220-9964/6/3/64/pdf |
