| article html file updated | 11 February 2020 22:54 CET | Update | https://www.mdpi.com/2076-3921/8/3/68 |
| article html file updated | 16 October 2019 18:28 CEST | Update | - |
| article html file updated | 26 April 2019 01:48 CEST | Update | - |
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| article html file updated | 2 April 2019 10:46 CEST | Update | - |
| article html file updated | 18 March 2019 11:40 CET | Original file | - |
| article pdf uploaded. | 18 March 2019 09:43 CET | Version of Record | https://www.mdpi.com/2076-3921/8/3/68/pdf |
| article xml uploaded. | 18 March 2019 09:43 CET | Update | https://www.mdpi.com/2076-3921/8/3/68/xml |
| article xml file uploaded | 18 March 2019 09:43 CET | Original file | - |
