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  1979. Dr R.CALDEYRO BARCIA : The influence of maternal position on time of spontaneous rupture of the membranes, progress of labor and fetal head compression.
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  1973. Dr R.SCHWARCZ, R.CALDEYRO-BARCIA et al : Fetal heart rate patterns in labors with intact and with ruptured membranes.
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  1972. Dr R.CALDEYRO-BARCIA, R-L.SCHWARCZ, O.ALTHABE et al : Effects of rupture of membrane on fetal heart rate pattern.
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  1970. Dr R.CALDEYRO BARCIA et al : Uterine contractions in spontaneous labor.
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  1968. Dr R.CALDEYRO-BARCIA, O.ALTHABE, G.ARAMBURU : Obstetrical factors influencing intrapartum compression of the fetal head and the incidence of Dips 1 in fetal heart rate.
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  1968. Dr J-J.POSEIRO, R.CALDEYRO-BARCIA et al : Aortocaval compression by the uterus in late human pregnancy. An arteriographic study.
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  1967. Dr C.MENDEZ BAUER, R.CALDEYRO BARCIA et al : Relationship between blood pH and heart rate in the human fetus during labor.
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  1963. Dr C.MENDEZ-BAUER, R.CALDEYRO-BARCIA et al : Effects of atropine on the heart rate of the human fetus during labor.
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  1961. Dr R.CALDEYRO-BARCIA et al : Effects of abnormal uterine contractions on a human fetus.
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  1960. Dr R.CALDEYRO-BARCIA : Oxytocin in pregnancy and labour.
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  1960. Dr R.CALDEYRO-BARCIA et al : Effect of position changes on the intensity and frequency of uterine contractions during labor.
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  1960. Dr R.CALDEYRO BARCIA, J-J.POSEIRO : Physiology of the uterine contraction.