TY - JOUR T1 - JO - Foundations of Physics Letters PY - 2000/01/01 AU - Sourbron S ED - DO - DOI: 10.1023/a:1007871611325 PB - Springer Science and Business Media LLC VL - 13 IS - 4 SP - 357 EP - 367 Y2 - 2024/12/22 ER -