Analysis of information sources in references of the Wikipedia article "Momento angular relativista" in Spanish language version.
|chapter-url-access= ignorado (ayuda) Jackson's notation: S (spin in F, lab frame), s (spin in F′, rest frame of particle), S0 (timelike component in lab frame), S′0= 0 (timelike component in rest frame of particle), no symbol for 4-spin as a 4-vector