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

-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

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

The splitting of the 2s²2p³²P term in O IIDE ROBERTIS, M. M; OSTERBROCK, D. E; MCKEE, C. F et al.The Astrophysical journal. 1985, Vol 293, Num 2, pp 459-462, issn 0004-637XArticle

OBSERVATIONS OF NGC 7027 IN THE NEAR INFRARED.SCRIMGER JN; LOWE RP; MOORHEAD JM et al.1978; PUBL. ASTR. SOC. PACIF.; USA; DA. 1978; VOL. 90; NO 535; PP. 257-261; BIBL. 17 REF.Article

THE 4 TO 8 MICRON SPECTRUM OF NGC 7027.RUSSELL RW; SOIFER BT; WILLNER SP et al.1977; ASTROPHYS. J.; U.S.A.; DA. 1977; VOL. 217; NO 3 PART. 2; PP. 149-153; BIBL. 29 REF.Article

THE INFRARED SPECTRA OF NGC 7027 AND BD+30^O3639.DYCK HM; SIMON T.1976; PUBL. ASTR. SOC. PACIF.; U.S.A.; DA. 1976; VOL. 88; NO 525; PP. 738-740; BIBL. 15 REF.Article

RECOMBINATION LINES IN PLANETARY NOBULAE AT 15 GIGAHERTZ.BIGNELL RC.1974; ASTROPHYS. J.; U.S.A.; DA. 1974; VOL. 193; NO 3 PART. 1; PP. 687-692; BIBL. 40 REF.Article

HIGH RESOLUTION OBSERVATIONS OF NGC 7027 AT 5 GHZSCOTT PF.1973; MONTH. NOT. R. ASTR. SOC.; G.B.; DA. 1973; VOL. 161; NO 4; PP. 35P-38P; BIBL. 13 REF.Serial Issue

On the diatomic and triatomic hydrogen molecules in the planetary nebula NGC 7027GUSSIE, G; PRITCHET, C.Journal of the Royal Astronomical Society of Canada. 1988, Vol 82, Num 2, pp 69-78, issn 0035-872XArticle

High spatial resolution observations of NGC 7027 with a 10 micron array cameraARENS, J. F; LAMB, G. M; PECK, M. C et al.The Astrophysical journal. 1984, Vol 279, Num 2, pp 685-693, issn 0004-637X, 1Article

HIGH-RESOLUTION SPECTRA OF THE 3.3 MICROMETER UNIDENTIFIED EMISSION FEATURE IN NGC 7027 AND HD 44179TOKUNAGA AT; YOUNG ET.1980; ASTROPHYS. J.; USA; DA. 1980; VOL. 237; NO 3 PART. 2; PP. 93-96; BIBL. 19 REF.Article

ULTRAVIOLET OBSERVATIONS OF PLANETARY NEBULAE.GURZADYAN GA.1977; INTERNATION. ASTR. UN., SYMP.; NETHERL.; DA. 1977; NO 76; PP. 79-91; BIBL. 35 REF.; (PLANET. NEBULAE. OBS. THEORY. SYMP.; ITHACA, N.Y.; 1977)Conference Paper

ON THE FORMATION AND DESTRUCTION OF HEH⁺ IN GASEOUS NEBULAE AND THE ASSOCIATED INFRA-RED EMISSION LINE SPECTRUMFLOWER DR; ROUEFF E.1979; ASTR. AND ASTROPHYS.; DEU; DA. 1979; VOL. 72; NO 3; PP. 361-366; BIBL. 23 REF.Article