Report (1999) - Å Wendsjö (author) , N Rao (author) , AM Christie (author) , J Owen (author) , AH Whitehead (author) , JO Thomas (author) , K Edström (author) , A Anderson (author) , M Topso (author) , C Jehoulet (author) , G Eichinger (author) , S Ernst (author) , EM Kelder (author) , AAD Schleich (author) , C Vincent (author) , L Christie (author)

Journal article (1999) - H Berg (author) , Erik Kelder (author) , JO Thomas (author)