Acquisitions and eBusiness continue to drive growth at Brill in HY1 2021 NOTE: The information in this report is based on unaudited interim financial statements. Highlights • Revenue up 19.1%, mainly driven by the acquisition of Vandenhoeck & Ruprecht Verlage (V&R) • Organic revenue growth 3.9% • COVID-19 accelerates the shift from print to digital • Very strong eBook sales with 14.9% organic growth • Journals decline due to timing of releases • EBITDA up 9% excluding the V&R acquisition • Net profit includes V&R acquisition integration costs of EUR 618 thousand • Wim Dikstaal appointed as CFO and Management Board member per September 1 • New financing agreement with RABO signed Peter Coebergh, CEO commented: "The highlight of the first HY 2021 was the acquisition of Vandenhoeck & Ruprecht (V&R) in February.Together with our new German and Austrian colleagues we have started the integration process which runs on schedule. So far the performance of V&R is in line with expectations. We are satisfied with the underlying revenue and profit development at Brill and are still benefiting from cost savings due to limited travel. Last year's acceleration of our eBusiness continues and compensates the ongoing decline in print book sales. In a still uncertain market environment Brill continues to execute its strategic agenda to become a fully digitally driven publishing house and to grow our revenue, profit and scale". Developments in the first half yearVandenhoeck & Ruprecht On March 1, 2021 Brill acquired all business assets of Vandenhoeck & Ruprecht Verlage. The renowned German publishing house, founded in 1735 and headquartered in Göttingen, has a superb and long-standing international reputation in the Humanities, especially in the fields of Theology and History.

The semiempirical method ofconstruction ofthe electronic polarizability functions for heteronuclear diatomic molecule in the piecewise-continuous form is discussed. The polarizability functions obtained have true asymptotic behaviour as for small as for large internuclear separations R and describe correctly the polarizability of a molecule in a vicinity of the equilibrium internuclear distance. To describe the polarizability functions for large separations, the DID interactions of atoms have been taken into account, and the exchange interactions of atoms have been considered by asymptotic methods. The method has been applied to calculate the polarizability functions of HF and HCI molecules in a range R e [0, oo).

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