| article html file updated | 8 February 2020 02:04 CET | Update | https://www.mdpi.com/2075-4701/7/4/108 |
| article html file updated | 23 September 2019 23:26 CEST | Update | - |
| article html file updated | 4 May 2019 05:22 CEST | Update | - |
| article html file updated | 28 April 2017 07:04 CEST | Update | - |
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| article xml uploaded. | 24 March 2017 04:49 CET | Update | https://www.mdpi.com/2075-4701/7/4/108/xml |
| article pdf uploaded. | 24 March 2017 04:49 CET | Updated version of record | https://www.mdpi.com/2075-4701/7/4/108/pdf |
| article html file updated | 23 March 2017 10:58 CET | Update | - |
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| article html file updated | 23 March 2017 10:58 CET | Original file | - |
| article pdf uploaded. | 23 March 2017 10:57 CET | Version of Record | https://www.mdpi.com/2075-4701/7/4/108/pdf-vor |
