This foreword to the Virtual Special Issue dedicated to Luc Wuytack contains some historical information related to the founding of Journal CAM as well as to Luc's memory. It also serves as a preface to the collection of articles that have been selected to exemplify the field to which Luc devoted his career and around which the development of the journal CAM started. (c) 2021 Elsevier B.V. All rights reserved.
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