• × Issue #42 – Winter 2021 1 × € 7,50
• × Issue #41 – Fall 2021 1 × € 7,50
• × Issue #40 – Summer 2021 1 × € 7,50
• × Issue #39 – Spring 2021 1 × € 7,50
• × Issue #38 – Winter 2020 1 × € 7,50
• × Issue #37 – Fall 2020 1 × € 7,50
• × Issue #36 – Summer 2020 1 × € 7,50
• × Issue #35 – Spring 2020 1 × € 7,50
• × Enthusiast 1 × € 7,50 every 3 months
• × Explorer 1 × € 27,00 / year
• × Hydrogen: Enabling a Zero-Emission Society 1 × € 0,00

Subtotal: € 94,50

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