| article html file updated | 9 February 2020 01:10 CET | Update | https://www.mdpi.com/2227-9059/6/1/3 |
| article html file updated | 29 September 2019 11:30 CEST | Update | N/A |
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| article html file updated | 26 March 2018 15:50 CEST | Update | N/A |
| article pdf uploaded. | 26 December 2017 07:08 CET | Updated version of record | https://www.mdpi.com/2227-9059/6/1/3/pdf |
| article html file updated | 25 December 2017 12:19 CET | Original file | N/A |
| article xml uploaded. | 25 December 2017 12:18 CET | Update | https://www.mdpi.com/2227-9059/6/1/3/xml |
| article xml uploaded. | 25 December 2017 12:18 CET | Update | N/A |
| article xml uploaded. | 25 December 2017 12:18 CET | Original file | N/A |
| article pdf uploaded. | 25 December 2017 12:18 CET | Version of Record | https://www.mdpi.com/2227-9059/6/1/3/pdf-vor |
