Inclusion in the Science Citation Index serves to encourage scientists in academia
to contribute to the series. The impact factor in recent years has increased from 2.5
in 2009 to 7.0 in 2017. The Editor-in-Chief and the Editorial Board strive for a
further increase of the journal impact factor by actively inviting authors to submit
manuscripts.
Amsterdam, The Netherlands
Pim de Voogt
August 2018
Preface
ix