(en-US) « ACTING OF THE IRISH PLAYERS; A Lack of Method Which Has Been Unduly Regarded as a Sign of Greatness -- No Stage Illusion Without Art -- The Plays and the Cause. », The New York Times, (ISSN0362-4331, lire en ligne, consulté le )
(en-US) « GABY DESLYS UNDER KNIFE.; Condition Is Critical and Another Operation May Be Necessary. », The New York Times, (ISSN0362-4331, lire en ligne, consulté le )
(en-US) « ACTING OF THE IRISH PLAYERS; A Lack of Method Which Has Been Unduly Regarded as a Sign of Greatness -- No Stage Illusion Without Art -- The Plays and the Cause. », The New York Times, (ISSN0362-4331, lire en ligne, consulté le )
(en-US) « GABY DESLYS UNDER KNIFE.; Condition Is Critical and Another Operation May Be Necessary. », The New York Times, (ISSN0362-4331, lire en ligne, consulté le )
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(en) Yorimitsu Hashimoto, « Soft Power of the Soft Art : Jiu-jitsu in the British Empire of the Early 20th Century », 国際シンポジウム, International Research Center for Japanese Studies, vol. 38, , p. 72-73 (lire en ligne [PDF])