| article html file updated | 7 February 2020 23:20 CET | Update | https://www.mdpi.com/2218-1997/3/1/10 |
| article html file updated | 23 September 2019 07:40 CEST | Update | N/A |
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| article html file updated | 30 March 2017 03:36 CEST | Update | N/A |
| article html file updated | 14 February 2017 10:56 CET | Original file | N/A |
| article xml uploaded. | 14 February 2017 10:55 CET | Original file | https://www.mdpi.com/2218-1997/3/1/10/xml |
| article pdf uploaded. | 14 February 2017 10:55 CET | Version of Record | https://www.mdpi.com/2218-1997/3/1/10/pdf |
