SPATIAL STUDIES OF THE MIDDLE INFRARED SPECTRAL FEATURES IN NGC 7027AITKEN DK; ROCHE PF.1983; MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY; ISSN 0035-8711; GBR; DA. 1983; VOL. 202; NO 3; PP. 1233-1244; BIBL. 32 REF.Article

AN ABUNDANCE GRADIENT FOR GASEOUS MAGNESIUM IN THE PLANETARY NEBULA NGC 7027PEQUIGNOT D; STASINSKA G.1980; ASTR. AND ASTROPHYS.; DEU; DA. 1980; VOL. 81; NO 1-2; PP. 121-127; BIBL. 39 REF.Article

MODELES THEORIQUES DE REGIONS HII ET DE NEBULEUSES PLANETAIRES: APPLICATION A NGC 7027PEQUIGNOT D; STASINSKA G; ALDROVANDI SMV et al.1978; J. PHYS., COLLOQ.; FRA; DA. 1978; VOL. 39; NO 1; PP. 164-167; ABS. ENG; BIBL. 11 REF.; (MILIEU INTERSTELLAIRE. CONGR. SOC. FR. PHYS.; POITIERS; 1977)Conference Paper

THE DISTANCE TO THE PLANETARY NEBULA NGC 7027POTTASCH SR; GOSS WM; ARNAL E et al.1982; ASTRON. ASTROPHYS. (BERL.); ISSN 0004-6361; DEU; DA. 1982; VOL. 106; NO 2; PP. 229-234; BIBL. 31 REF.Article

ABUNDANCE OF CARBON IN NGC 7027PANAGIA N; BUSSOLETTI E; BLANCO A et al.1977; ASTROPHYS. SPACE SCI. LIBRARY; NETHERL.; DA. 1977; VOL. 67; PP. 45-48; BIBL. 15 REF.; (CNO ISOT. ASTROPHYS. PROC. SPEC. IAU SESS.; GRENOBLE; 1976)Conference Paper

THE STRUCTURE AND INTERNAL EXTINCTION OF NGC 7027.HICKS TR; PHILLIPS JP; REAY NK et al.1976; MONTH. NOT. R. ASTR. SOC.; G.B.; DA. 1976; VOL. 176; NO 2; PP. 409-419; BIBL. 22 REF.Article

-38 MICRON SPECTROSCOPY OF NGC 7027.MCCARTHY JF; FORREST WJ; HOUCK JR et al.1978; ASTROPHYS. J.; USA; DA. 1978; VOL. 224; NO 1 PART. 1; PP. 109-114; BIBL. 35 REF.Article

THE SPATIAL DISTRIBUTION OF THE 11.7 MICRON RADIATION OF NGC 7027KNACKE RF; DRESSLER AM.1973; PUBL. ASTR. SOC. PACIF.; U.S.A.; DA. 1973; VOL. 85; NO 503; PP. 100-102; BIBL. 8 REF.Serial Issue

MEAN ELECTRON DENSITY OF NGC 7027 INFERRED FROM H85ALPHA LINE DATAHOANG BINH D.1972; MEM. SOC. R. SCI. LIEGE, 8O; )BELG.; DA. 1972; VOL. 3; PP. 365-366; BIBL. 10REF.Serial Issue

Observations of NGC 7027 from 5.2 to 7.5 microns: the detection of Ni II and additional dust featuresBREGMAN, J. D; DINERSTEIN, H. L; GOEBEL, J. H et al.The Astrophysical journal. 1983, Vol 274, Num 2, pp 666-670, issn 0004-637XArticle

ON THE DENSITY GRADIENT IN NGC 7027PERINOTTO M.1977; ASTR. AND ASTROPHYS.; GERM.; DA. 1977; VOL. 60; NO 3; PP. 433-435; BIBL. 14 REF.Article

THE UNDERABUNDANCE OF GASEOUS IRON IN THE PLANETARY NEBULA NGC 7027.SHIELDS GA.1975; ASTROPHYS. J.; U.S.A.; DA. 1975; VOL. 195; NO 2 PART. 1; PP. 475-478; BIBL. 34 REF.Article

RADIATIVE TRANSFER IN SPHERICAL CIRCUMSTELLAR DUST ENVELOPES. IV. THE INFRARED EMISSIVITY PROFILE AND COMPOSITION OF THE DUST IN NGC 7027.APRUZESE JP.1976; ASTROPHYS. J.; U.S.A.; DA. 1976; VOL. 203; NO 1 PART. 1; BIBL. 21 REF.Article

EFFECT OF DUST ON THE (OII) EMISSION FROM THE PLANETARY NEBULA NGC 7027PEQUIGNOT D.1979; ASTR. AND ASTROPHYS.; DEU; DA. 1979; VOL. 78; NO 1; PP. 29-32; BIBL. 20 REF.Article

THE DISTRIBUTION OF SIV AND NEII IN NGC 7027^OBREGMAN JD.1978; PUBL. ASTR. SOC. PACIF.; USA; DA. 1978; VOL. 90; NO 537; PP. 548-551; BIBL. 13 REF.Article

OBSERVATIONS DES NEBULEUSES PLANETAIRES NGC 7027 ET NGC 7293 A L'OBSERVATOIRE DE KOTTAMIAASAAD AS; KHASAN SM; KHROMOV GS et al.1978; ASTROFIZIKA, ARM. S.S.R.; S.S.S.R.; DA. 1978; VOL. 14; NO 1; PP. 31-35; ABS. ANGL.; BIBL. 11 REF.Article

LE SPECTRE DE LA NEBULEUSE PLANETAIRE NGC 7027 DANS L'INFRA-ROUGE PROCHEKOLOTILOV EA; NOSKOVA RI.1972; ASTR. CIRK., IZDAV. BJURO ASTR. SOOBSHCH. AKAD. NAUK S.S.S.R.; S.S.S.R.; DA. 1972; NO 697; PP. 4-6; BIBL. 8REF.Serial Issue

THE ABSOLUTE HBETA FLUX FROM NGC 7027SHAW RA; KALER JB.1982; ASTROPHYSICAL JOURNAL; ISSN 0004-637X; USA; DA. 1982; VOL. 261; NO 2; PART 1; PP. 510-512; BIBL. 26 REF.Article

MEASUREMENTS OF THE EXTINCTION TO THE MOLECULAR HYDROGEN EMISSION FROM THE ORION NEBULABECKWITH S; PERSSON SE; NEUGEBAUER G et al.1979; ASTROPHYS. J.; USA; DA. 1979; VOL. 227; NO 2 PART. 1; PP. 436-440; BIBL. 20 REF.Article

DETERMINATION OF THE INTRINSIC Q (3)/S (1) LINE INTENSITY RATIO OF MOLECULAR HYDROGENGEBALLE TR; RUSSELL RW; NADEAU D et al.1982; ASTROPHYS. J.; ISSN 0004-637X; USA; DA. 1982; VOL. 259; NO 1; PART. 2; PP. L47-L49; BIBL. 17 REF.Article

FAR-INFRARED EMISSION-LINE AND CONTINUUM OBSERVATIONS OF NGC 7027MELNICK G; RUSSELL RW; GULL GE et al.1981; ASTROPHYS. J.; ISSN 0004-637X; USA; DA. 1981; VOL. 243; NO 1; PART. 1; PP. 170-174; BIBL. 33 REF.Article

MONOCHROMATOR-INTERFEROMETER COMBINATION FOR SUBMILLIMETER ASTRONOMICAL SPECTROMETRY FROM AIRCRAFTHARWIT M; KURTZ NT; RUSSELL RW et al.1981; APPL. OPT.; ISSN 0003-6935; USA; DA. 1981; VOL. 20; NO 21; PP. 3792-3797; BIBL. 9 REF.Article

ON THE LOW EXCITATION EMISSION FROM THE PLANETARY NEBULA NGC7027.PEQUIGNOT D; ALDROVANDI SMV; STASINSKA G et al.1977; ASTR. AND ASTROPHYS.; GERM.; DA. 1977; VOL. 58; NO 3; PP. 411-421; BIBL. 52 REF.Article

CONTINUUM OBSERVATIONS AND THE ELECTRON TEMPERATURE OF NGC 7027.KALER JB.1976; ASTROPHYS. LETTERS; U.S.A.; DA. 1976; VOL. 17; NO 4; PP. 163-166; BIBL. 13 REF.Article

A RADIO RECOMBINATION-LINE STUDY OF THE PLANETARY NEBULA NGC 7027.CHAISSON EJ; MALKAN MA.1976; ASTROPHYS. J.; U.S.A.; DA. 1976; VOL. 210; NO 1 PART. 1; PP. 108-112; BIBL. 36 REF.Article