The article uses a single reference to support the statement that delegation is inheritance some programming languages use delegation which is semantically equivalent but then confuses the reader by describing how delegation and inheritance differ which is ironically the point of the whole article  Cs page on this topic gives a more balanced discussion including  a link to at least one paper that refutes Steins opinion  a discussion of different viewpoints as to what delegation is  The paper which is used as an example is Automated Delegation is a Viable Alternative to Multiple Inheritance in Class Based Languages Viega Reynolds and Behrends httpwwwcsvirginiaeduevanscsSreadingsviegapdf